HVAC State and Local Licensing Requirements

HVAC License

There aren’t a lot of building trades that require you to hold more than one card. That can’t be said for the HVAC trade. One of the biggest gripes out there is the sheer number of certifications a guys has to hold to stay above board in the HVAC industry…

Everyone has to have their EPA Section 608 card – that’s easy enough. If you’re in one of the unions, you either hold a journeyman card or you’re working towards earning it – nothing too complicated there. Maybe you hold NATE certification that you need to keep current, and maybe you’ve been ambitious enough to collect a bunch of other specialty certs – well, those are voluntary and nobody is going to fire you or fine your employer if one of those lapse.

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State-by-State Guide to HVAC Licensing Laws

Use this quick reference guide to get a clear understanding of exactly what’s required in the cities and states where you work.

Alabama

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Alabama Board of Heating, Air Conditioning & Refrigeration Contractors
- License required: Heating and Air Conditioning and/or Commercial Refrigeration Contractor
- To sit for the contractors’ examination, you must qualify in one of the following ways:
  - Hold an Apprentice Registration for two years, working under a licensed Heating and Air Conditioning or Commercial Refrigeration contractor;
  - OR
  - Complete 3000 Hours of Heating and Air Conditioning or Commercial Refrigeration education training
  - OR
  - Graduate from an approved Heating and Air Conditioning or Commercial Refrigeration curriculum

- When you apply for a HVAC Contractor license in Alabama, you must submit a performance bond for $15,000

Alaska

HVAC Technician:
- Certificate issued through: Alaska Department of Commerce, Community and Economic Development, Division of Labor Standards & Safety, Mechanical Inspection Section
- Certificate of Fitness for the Trades relevant to some HVAC work is required for:
  - Plumber Restricted PG (install fuel and gas piping)
    - Must have 2000 hours of fuel and gas piping installation work experience
    - Must have 4000 hours of general plumbing work experience
    - Apprenticeship or educational training may substitute up to 500 hours of work experience
    - Must pass an examination
HVAC Contractor:
- Licenses issued through: Alaska Department of Commerce, Community and Economic Development, Division of Labor Standards & Safety, Mechanical Inspection Section
- Licenses offered: there are two parts to becoming a contractor in Alaska. First, all contractors must have a Mechanical Administrator license, or have a Mechanical Administrator working for them, to supervise work. The types of HVAC-related Mechanical Administrator licenses available are:
  - Heating, Cooling and Process Piping (HCPP)
    - Must meet ONE of the following qualifications:
      - Journeyman experience in heating, cooling and process piping work in four of the last six years prior to application
      - Management experience in heating, cooling and process piping in four of the last six years prior to application
      - Degree in mechanical engineering and one year of journeyman pipefitter or field engineer experience in heating, cooling and process piping for one of the three years prior to application
      - State registration as a professional mechanical engineer plus mechanical contracting management experience in one of the three years prior to application
  - Residential HVAC (RHVC)
    - Must have experience as a journeyman in residential HVAC work for two of the last four years prior to application
  - Residential Plumbing and Hydronic Heating (RPHH)
    - Must have experience as a journeyman residential plumber and hydronic heat worker for two of the last four years prior to application
  - Unlimited Commercial and Industrial Plumbing (UCIP)
    - Must meet ONE of the following qualifications:
      - Journeyman plumber experience in four of the last six years prior to application
      - Plumbing management experience in four of the last six years prior to application
      - Degree in mechanical engineering and one year of experience as journeyman plumber or field engineer in the last three years prior to application
      - State registration as a professional mechanical engineer plus mechanical contracting management experience in one of the three years prior to application
  - Unlimited HVAC/Sheet Metal (UHVCS)
    - Must meet ONE of the following qualifications:
      - Journeyman HVAC/sheet metal experience in four of the last six years
      - Management experience in HVAC/sheet metal in four of the last six years
      - Degree in mechanical engineering and journeyman or field engineering experience in HVAC and sheet metal in one of the last three years
      - State registration as a professional mechanical engineer plus mechanical contracting management experience in one of the three years prior to application
  - Unlimited Refrigeration (UR)
    - Must meet ONE of the following qualifications:
      - Journeyman refrigeration experience for two of the four years prior to application
      - Graduate of an accredited refrigeration training program/trade school
- The second part to becoming an HVAC contractor in Alaska is to apply for a Mechanical Contractor registration. All Mechanical Contractor applicants must have or employ a licensed Mechanical Administrator before a license will be issued. They may perform mechanical contracting work only for the specialty to which they have an administrator assigned.
  - The Mechanical Contractor license is issued through the Alaska Department of Commerce, Community and Economic Development Contractor Licensing Section
  - Requirements for Mechanical Contractor registration are:
    - $10,000 surety bond
    - Certificate of liability insurance coverage ($20,000 property damage, $50,000 individual, $100,000 aggregate)
    - Certificate of workers compensation insurance
    - Business license
    - If corporation, register with the Division of Corporations
    - Mechanical Administrator license (or have employee with one)

Arizona

HVAC Technician:
- License not required
HVAC Contractor:
- Licenses issued through: Arizona Registrar of Contractors
- Licenses:
  - Specialty Residential Contractor– category:
    - Air Conditioning and Refrigeration, including Solar
  - Specialty Dual License Contractor- categories:
    - Air Conditioning and Refrigeration
    - Air Conditioning and Refrigeration, including Solar
  - Specialty Commercial Contractor- categories:
    - Air Conditioning and Refrigeration
    - Air Conditioning and Refrigeration, including solar
- Licensure requirements:
  - Four years of experience in HVAC specialty in which you are applying (education or apprenticeship can be substituted for up to two years of experience)
  - Reserve and register your company name with the Arizona Corporation Commission (for corporations or LLCs) or Arizona Secretary of State (for partnerships)
  - Pass the state’s trade examination for your licensure category
  - Pass a business management examination
  - Obtain a surety or cash bond
  - Obtain worker’s compensation insurance

Arkansas

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Arkansas Department of Health, Heating, Ventilation, Air Conditioning & Refrigeration Licensing Board
- License required: HVAC/R Contractor, in one of the following classes:
  - Class A- covers unlimited size/capacity HVAC/R work
  - Class B– covers work on 15-ton capacity per unit cooling system, 15 HP refrigeration, and heating systems up to 1 million BTU/hour
  - Class C – service and repair HVAC/R equipment
  - Class D – perform sheet metal work only
  - Class E – perform refrigeration work only
- Requirements for licensure:
  - Submit application to the state’s HVAC/R licensing board for pre-approva
  - Pass the Class A or Class B exam
  - Pass the state’s Business Law exam if you are doing projects over $20,000
  - Two years of experience in HVAC

California

HVAC Technician:
- License not required
HVAC Contractor:
- Licenses issued through: California Department of Consumer Affairs Contractors State License Board

License required: Class C 20 Specialty Contractor License– Warm Air Heating, Ventilating and Air Conditioning

- Licensure requirements:
  - Four years of work experience at the journeyman level or higher (apprentice or trainee work does not count towards this requirement)
  - Education can count towards three of the four year work experience requirement
  - Pass the licensing exam
  - Pass the California Law and Business exam
  - Pass an open book asbestos exam
  - Provide $15,000 contractor bond
  - Provide Certificate of Workers’ Compensation

Colorado

HVAC Technician:
- License not required; however electrician and plumbing licenses are required
- Licenses issued through: Colorado State Electrical Board and Colorado State Plumbing Board
- Licenses offered:
  - Residential Wireman
    - Must have 4000 hours/two years of electrical construction wiring experience
    - Must have an active apprentice license
    - Must pass examination
  - Journeyman Electrician
    - Must have 8000 hours/four years of electrical construction wiring experience, with 4000 of those hours in commercial/industrial work
    - Must have a minimum of an active apprentice license
    - Must pass examination
  - Master Electrician
    - Must have 2000 hours/one year of supervision of electrical installation experience, in addition to the experience required for the journeyman’s license
    - Must have a minimum of an active apprentice license
    - Must pass examination
  - Residential Plumber
    - Must have two years/3400 hours of plumbing experience
    - Must pass examination
  - Journeyman Plumber
    - Must have four years/6800 hours of plumbing experience
    - Must pass examination
  - Master Plumber
    - Must have five years/8500 hours of plumbing experience
    - Must pass examination
- Local jurisdictions such as Denver also require local licenses, including:
  - Boilermaker Journeyman
  - Boiler Operator
  - Gas Service Journeyman
  - Heating and Ventilating Journeyman
  - Refrigeration Journeyman
  - Refrigeration Operator
  - Steamfitter Journeyman
HVAC Contractor:
- State registrations are issued through the Colorado State Electrical Board and Colorado State Plumbing Board
- Registrations offered:
  - Plumbing Contractor
    - Must be a Master Plumber or employ one
    - Must submit workers compensation and unemployment insurance verification
    - Must obtain authority to conduct business from Secretary of State’s office
  - Water Conditioning Contractor
    - Must be a Water Conditioning Principal or employ one
    - Must submit workers compensation and unemployment insurance verification
    - Must obtain authority to conduct business from Secretary of State’s office
  - Electrical Contractor
    - Must be or employ a Master Electrician
    - Must submit workers compensation and unemployment insurance verification
    - Must obtain authority to conduct business from Secretary of State’s office
- Additionally, some local jurisdictions in Colorado require licenses for HVAC contractors:
  - Denver
    - License issued through: Denver Community Planning and Development
    - Licenses required:
      - First you must obtain a Denver Supervisor Certificate- Mechanical in one of the following categories:
        
        Boilermaker
        
        Gas Service
        
        Heating and Ventilating
        
        Hot Water
        
        Refrigeration
        
        Steam & Hot Water
      - Once you hold a Denver Supervisor Certificate, or if you have a state Electrical or Plumbing Contractor registration, you may apply for a Denver Contractor license
  - Colorado Springs also requires contractors to hold a local license

Connecticut

HVAC Technician:
- Licenses issued through: Connecticut Department of Consumer Protection
- Licenses:
  - B-2: Limited Gas and Oil Burner Journeyperson
  - B-4: Limited Gas and Oil Burner Journeyperson
  - D-2: Limited Warm Air, Air Conditioning and Refrigeration Journeyperson
  - D-4: Limited Cooling Journeyperson
  - G-2: Limited Heating, Piping and Cooling Journeyperson
  - S-2: Unlimited Heating, Piping and Cooling Journeyperson
  - S-4: Limited Heating, Cooling and Piping Journeyperson
  - S-6: Limited Heating, Hot Water and Steam Journeyperson
  - S-8: Limited Journeyperson
  - S-10: Limited Heating Cooling Journeyperson
- Licensure requirements:
  - Must complete a registered apprenticeship or hold equivalent education/experience
  - Must pass an examination
HVAC Contractor:
- Licenses issued through: Connecticut Department of Consumer Protection
- Licenses:
  - B-1: Limited Gas and Oil Burner Contractor
  - B-3: Limited Gas and Oil Burner Contractor
  - D-1: Limited Warm Air, Air Conditioning and Refrigeration Contractor
  - D-3: Limited Cooling Contractor
  - G-1: Limited Heating, Piping and Cooling Contractor
  - S-1: Unlimited Heating, Piping and Cooling Contractor
  - S-3: Limited Heating, Cooling and Piping Contractor
  - S-5: Limited Heating, Hot Water and Steam Contractor
  - S-7: Limited Contractor
  - S-9: Limited Heating Cooling Contractor
- Licensure requirements:
  - Must work for two years as a licensed journeyperson in the specialization in which you wish to become licensed as a contractor
  - Must pass the contractor’s exam
  - Must pass the Business and Law exam

Delaware

HVAC Technician:
- License issued through: Delaware Division of Professional Regulation, Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
- License required: HVACR, with the following levels:
  - Apprentice: must register with the State of Delaware Department of Labor and enroll in a federally-approved program
  - Journeyman: must have:
    - Earned a Journeyman’s Certificate of Completion from a federally-approved apprenticeship program (completed four years/8000 hours on-the-job training, plus 144 hours of classroom education for every year of training, and worked for at least two years after receiving the certificate under the supervision of a licensed Master HVACR;
    - OR
    - Have seven years of experience working under a licensed Master HVACR and pass the Apprenticeship By-Pass Exam
  - Master: must be certified as a journeyman and pass the Master HVACR exam

HVAC Contractor:
- License issued through: Delaware Division of Revenue
- Licenses offered: Resident Contractor or Non-Resident Contractor
- Licensure requirements:
  - Contractor’s surety bond (amount depends on whether you file as Resident or Non-Resident)
  - Liability insurance
- If you plan to work in New Castle County you must also obtain a Permit Endorsed License from the county and provide a certificate of liability insurance and statutory compliance bond

District of Columbia

HVAC Technician:
- License issued through: District of Columbia Board of Industrial Trades
- Licenses offered:
  - Refrigeration & Air Conditioning Mechanic
    - Apprentice– must provide verification that you will work for a licensed Master
    - Journeyman- must have worked for four years/8000 hours as an apprentice
    - Master– must have worked for 4 years as apprentice and 4 years as a journeyman
  - Master Air Conditioning & Refrigeration Mechanical Limited
    - Must have worked for 4 years as apprentice and 4 years as a journeyman
  - Steam Engineer Class 1
  - Steam Engineer Class 2
  - Steam Engineer Class 3
  - Steam Engineer Class 4
  - Steam Engineer Class 5A
  - Steam Engineer Class 5B (miniature boiler)
  - Steam Engineer Class 6
  - Operating Engineer Class 7 Unlimited (air compressors and refrigeration systems)
  - Operating Engineer Class 7A (air compressors)
  - Operating Engineer Class 8A (refrigeration systems)
- Licensure requirements:
  - Must be at least 18 years old
  - Must meet education/experience requirements (listed above)
  - Must pass an examination
HVAC Contractor:
- License issued through: District of Columbia Board of Industrial Trades
- Licenses offered:
  - Refrigeration/Air Conditioning Contractor
  - Refrigeration/Air Conditioning Contractor Limited
- Licensure requirements:
  - Pass examination
  - Complete Local Representative Affidavit
  - Designated master must complete Stock Certificate
  - Designated master must provide bond

Florida

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Florida Department of Business & Professional Regulation
- Licenses offered:
  - Air Conditioning – Class A State Certified Contractor
  - Air Conditioning – Class B State Certified Contractor
  - Air Conditioning- Class A State Registered Contractor
  - Air Conditioning- Class B State Registered Contractor
  - Air Conditioning – Class C State Certified Service Contractor
  - Air Conditioning- Class C State Registered Contractor
  - Mechanical State Certified Contractor
  - Solar State Certified Contractor
- Licensure requirements:
  - Certified – you must pass an examination and can work anywhere in the state of Florida
  - Registered- you must pass a local competency examination and can work only with that locality
  - For both types of licenses: You must meet one of the following criteria:
    - Hold a bachelor’s degree in a related field and one year/2000 hours of experience;
    - -OR-
    - Have four years of experience gained through an apprenticeship, with at least one of those years as a foreman;
    - OR
    - Have one year of experience as a foreman and at least three years of college credits;
    - OR
    - Have one year of experience as a worker, one year as a foreman, and two years of college credits;
    - OR
    - Have two years of experience as a worker, one year as a foreman, and one year of college credits
  - You must also pass a Business and Finance examination

Georgia

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Georgia Board of Conditioned Air Contractors
- Licenses:
  - Conditioned Air Contractor Class I License (Restricted in BTU limits)
    - Requirements:
      - Four years of HVAC experience, including two years as a lead mechanic, one year as a service technician with EPA Type II certification or higher, and one year of residential supervisory experience
      - Completion of a Board-approved heat loss and gain and duct design course
      - Passing the state examination
      - Obtaining $10,000 cash or surety bond deposited in county in which you plan to work
  - Conditioned Air Contractor Class II License (Unrestricted in BTU limits)
    - Requirements:
      - Five years of HVAC experience, including two years as a lead mechanic, one year as a service technician with EPA Type II certification or higher, and two years of commercial supervisory experience
      - Completion of a Board-approved heat loss and gain and duct design course
      - Passing the state examination
      - Obtaining $10,000 cash or surety bond deposited in county in which you plan to work

Hawaii

HVAC Technician:
- License issued through: Hawaii Department of Commerce and Consumer Affairs
- Licenses offered:
  - Journey Worker Electrician
    - Must have five years/10,000 hours experience in residential or commercial wiring, under a licensed electrician’s supervision
    - Must complete 240 hours of approved electrical academic coursework
    - Must pass an exam
  - Journey Worker Specialty Electrician
    - Must have three years/6,000 hours experience in residential or commercial wiring, under a licensed electrician’s supervision
    - Must have completed 120 hours of approved electrical academic coursework
    - Must pass an exam
  - Supervising Electrician
    - Must have been licensed as a journey worker electrician for four years
    - Must pass exam
  - Supervising Specialty Electrician
    - Must have been licensed as journey worker specialty electrician for two years
    - Must pass exam
  - Journey Worker Plumber
    - Must have five years/10,000 hours experience as a journey worker’s or master plumber’s helper
    - Must pass exam
  - Master Plumber
    - Must have worked as a journey worker plumber for two years
    - Must pass exam
HVAC Contractor:
- License issued through: Hawaii Department of Commerce and Consumer Affairs
- License required:
  - Specialty Contractor
    - Must pass trade and business/law examinations
    - Must have workers compensation insurance
    - Must have liability insurance -$100,000 individual, $300,000 occurrence, $50,000 property damage
    - Must have surety bond
    - Must register your business with the State

Idaho

HVAC Technician:
- Certificates of Competency issued through: Idaho Division of Building Safety
- Certificates offered:
  - HVAC Apprentice
    - Must be 18 years of age or registered in a Bureau of Apprenticeship Training certified HVAC training program
    - Must maintain enrollment in approved training program
    - Must work under supervision of certificated HVAC journeyman
  - Specialty HVAC Apprentice
    - Must be 18 years of age or registered in a Bureau of Apprenticeship Training certified HVAC training program
    - Must maintain enrollment in approved training program
    - Must work under supervision of certificated HVAC journeyman or specialty journeyman
  - HVAC Journeyman
    - Must have four years of HVAC experience or as a registered HVAC apprentice and complete all apprentice training courses
    - Must pass examination
  - HVAC Hearth Specialty Journeyman
    - Must have one years of experience in HVAC or as a registered apprentice
    - Must complete a board approved training course and 60 hours of education in fuel gas code and piping installation methods
    - Must pass examination
  - HVAC Waste Oil Specialty Journeyman
    - Must have one year of waste oil heating installation experience
    - Must pass examination
  - HVAC Fuel Gas Piping Specialty Journeyman
    - Must have one year of experience in HVAC
    - Must have completed 60 hours of education in fuel gas code and piping installation methods
    - Must pass examination
HVAC Contractor:
- Certificates of Competency issued through: Idaho Division of Building Safety
- Certificates offered:
  - HVAC Contractor
    - Must have worked as HVAC journeyman for 24 months
    - Must pass examination
    - Must secure $2000 compliance bond
  - HVAC Specialty Contractor
    - Must have worked as an HVAC specialty journeyman for 24 months
    - Must pass examination
    - Must secure $2000 compliance bond

Illinois

HVAC Technician
- License not required at the state level
HVAC Contractor
- License not required at the state level
- Local licensing:
  - Cook County- Contractors must register with the Cook County Department of Building and Zoning
  - City of Evanston– all HVAC Mechanical Contractors must receive a license by passing an exam on the International Mechanical Code and International Fuel Gas Code
  - City of Elgin – all Warm Air Heating Contractors must register with the city by passing an examination through the Department of Community Development
  - City of DeKalb– all Mechanical Contractors must register with the city through passing an examination
- Other local jurisdictions in Illinois have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a contractor there

Indiana

HVAC Technician
- License not required at the state level
- Local licensing:
  - City of Evansville: issues the following licenses:
    - Apprentice Heating, Ventilating and Air Conditioning Installer– must be registered in an approved Apprentice Training Program
    - Journeyman Heating, Ventilating and Air Conditioning Installer– must have four years of experience and pass an exam
    - Master Heating, Ventilating and Air Conditioning Installer -must have four years of experience and pass an exam, and provide a surety bond for $15,000 to the Building Commission, and have workers compensation insurance
    - Apprentice Refrigeration Installer – Must be registered in an approved Apprentice Training Program
    - Journeyman Refrigeration Installer – must have four years of experience and pass an exam
    - Master Refrigeration Installer– must have four years of experience and pass an exam, and provide a surety bond for $15,000 to the Building Commission, and have workers compensation insurance
  - Other local jurisdictions in Indiana may have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC Technician there
HVAC Contractor
- License not required at the state level
- Local licensing:
  - City of Indianapolis– issues HVACR Contractor License to qualified individuals with five years of HVACR experience who pass an exam, in the following categories:
    - Air Conditioning A- Unrestricted
    - Air Conditioning B-25 cooling/500,000 BTUs heating
    - Air Conditioning D – 5 tons cooling/300,000 BTUs heating
    - Refrigeration
    - High Pressure Steam
  - City of Evansville– issues the following licenses, all of which require four years of experience and pass an exam, and provide a surety bond for $15,000 to the Building Commission, and have workers compensation insurance:
    - Flammable Liquid Tank and Piping Contractor-
    - Underground Utilities Contractor
    - Special Sub Contractor
  - Other local jurisdictions in Indiana may have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC Contractor there

Iowa

HVAC Technician:
- Licenses issued through: Iowa Department of Public Health, Plumbing & Mechanical Systems Board
- Licenses:
  - HVAC Technician with the following levels:
    - Apprentice – must be enrolled in a US Dept of Labor-approved apprenticeship program and work under the supervision of a licensed journeyperson or master
    - Journeyperson- Must have four years of experience as an apprentice and pass the journeyperson exam
    - Master- Must have a journeyperson license and two years of experience and pass the master-level exam
  - Service Technician HVAC Specialty – must complete North American Technical Excellence (NATE) training and receive a certificate
  - Hearth Systems Specialty Technician- must have certification from the National Fireplace Institute
HVAC Contractor:
- Licenses issued through: Iowa Department of Public Health, Plumbing & Mechanical Systems Board
- Licenses:
  - HVAC/R Contractor:
    - Must be or employ a licensed Master of Record
    - Must register as a contractor with the Iowa Division of Labor
    - Must hold public liability insurance in the amount of $500,000
    - Must have a minimum $5000 surety bond

Kansas

HVAC Technician:
- License not required at the state level
- Local licensing requirements include:
  - City of Lawrence: Licenses include:
    - Residential Mechanical Tradesperson– Must have two years of experience and pass an exam
    - Journeyman Mechanical Tradesperson – Must have two years of experience and pass an exam
    - Master Mechanical Tradesperson– Must have four years of experience or two years of journeyman experience and pass an exam
  - Sedgwick County: Trade Certificates are obtainable by passing an International Code Council tradesperson exam, and include:
    - Journeyman Plumbing
    - Journeyman Refrigeration
    - Journeyman Gas Fitter
    - Journeyman Solid Fuel
    - Master Plumbing
    - Master Refrigeration
    - Master Gas Fitter
    - Master Solid Fuel
- Other local jurisdictions in Kansas may have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC Technician there
HVAC Contractor:
- License not required at the state level
- Local licensing requirements include:
- City of Lawrence: License:
  - Class E, Mechanical (HVAC) Contractor– must be a certified master mechanic with four years of experience or two as a journeyman, and pass an exam
- Sedgwick County: Contractor licenses are obtainable by submitting fees, application, providing proof of liability and workman’s compensation insurance, and include:
  - Class A- General Contractor
  - Class C- Residential Contractor
  - Class D- Maintenance Contractor
- Johnson County:
  - Class DM – Mechanical Contractor – requires liability insurance, workman’s compensation insurance, and a qualified individual who has either:
    - A bachelor’s degree in architecture, engineering, construction science or construction management,
    - OR
    - Passes an approved contractor exam (ICC Kansas Standard Master Mechanical Exam or similar)
- Other local jurisdictions in Kansas may have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC Contractor there

Kentucky

HVAC Technician:
- License issued through: Kentucky Department of Housing, Buildings & Construction
- Licenses:
  - Apprentice HVAC Mechanic:
    - Must be working under the direct supervision of a Kentucky licensed Master HVAC Contractor
    - Must register with the state
  - Journeyman HVAC Mechanic:
    - Must have worked for two years/3000 hours under the direct supervision of a Kentucky licensed master HVAC contractor
    - OR
    - Must have worked in HVAC for four years in a jurisdiction other than Kentucky
    - Must pass examination
    - One year of HVAC training/education may be substituted for one year of employment experience
    - Must provide proof of $500,000 general/$300,000 property damage liability insurance
HVAC Contractor:
- License issued through: Kentucky Department of Housing, Buildings & Construction
- License:
  - Master HVAC Contractor:
    - Must have worked as a journeyman for two years/3000 hours under the direct supervision of a Kentucky licensed master HVAC contractor
    - OR
    - Must have worked in HVAC for five years in a jurisdiction other than Kentucky
    - Must pass an examination
    - One year of HVAC training/education may be substituted for one year of employment experience

Louisiana

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Louisiana State Licensing Board
- Licenses:
  - Mechanical Work Contractor, with the following sublicenses:
    - Heating, Air Conditioning, Ventilation, Duct Work and Refrigeration
    - Industrial Pipe Work and Insulation
    - Controls for Mechanical Work
- Requirements:
  - Pass a trade exam (you may take the exam for Mechanical Work Contractor, which covers all three subspecialties, or take an exam for the subspecialty(ies) in which you wish to work
  - Pass a Business and Law exam
  - Provide a financial statement of your financial responsibility
  - Designate a qualifying party to be legal representative of the business entity

Maine

HVAC Technician:
- Licenses issued through: Maine Fuel Board
- Licenses offered:
  - Oil Burner/Solid Fuel Technician, with the following levels:
    - Apprentice- must register with the state and work under the supervision of a licensed master oil burner or solid fuel technician
    - Journeyman – must fulfill ONE of the following requirements to be eligible to sit for the exam:
      - Complete one year of experience as a licensed apprentice,
      - OR
      - Complete at least 160 hours of study (75 hours must be in lab work on oil burning systems and 6 months must be experience as a licensed apprentice),
      - OR
      - Complete a one year accredited heating course with 320 hours of study (150 hours are lab work on oil burning systems),
    - Master Oil Burner Technician- must complete at least four years of licensed experience, with two years as a licensed journeyman, prior to sitting for the exam
    - Master Solid Fuel Technician- must complete two years as a licensed apprentice solid fuel technician to sit for the examination
    - Limited Wood Pellet Technician- must complete application and pay necessary fees
    - Oil Limited Energy Auditor Technician- must complete Certified Building Analyst 1 certification test and field examination of the Building Performance Institute, or complete an approved training program, prior to licensure
    - Propane Limited Energy Auditor Technician- must complete Certified Building Analyst 1 certification test and field examination of the Building Performance Institute, or complete an approved training program, prior to licensure
    - Propane and Natural Gas Technician- must complete a board-approved training program prior to sitting for the exam
    - Plant Operator and/or Delivery Technician- must complete application and pay necessary fees
HVAC Contractor:
- Licenses not offered; however, in order to work in new construction, you must hold one of the above- mentioned technician licenses

Maryland

HVAC Technician:
- License issued through: Maryland Department of Labor, Licensing and Regulation
- License required: HVACR, with the following levels:
  - Apprentice: no examination required; must plan to work under the supervision of a licensed Master, Master Restricted or Limited HVACR
  - Journeyman: must fulfill requirements in one of the following ways prior to sitting for the Journeyman Examination:
    - Complete 1875 hours/three years of training as a licensed apprentice under the supervision of a licensed HVACR contractor (if you take this route you do not need to sit for the Journeyman Exam),
    - OR
    - Complete an approved HVACR degree/certificate program and experience under a licensed journeyman (minimum) -combined time must equal three years,
    - OR
    - Complete three years of out-of-state HVACR experience
  - Master: must be have been licensed as a journeyman and employed in all areas of HVACR services for three years under the supervision of a licensed HVACR master, as well as completed 1875 hours of training in the year prior to taking the Master License examination (you cannot become a Master HVAC Tech without also becoming a HVAC Contractor, see below)
- Local licenses:
  - Anne Arundel County:
    - Licenses issued through: Anne Arundel County Inspections & Permits
    - Licenses required: HVAC Mechanical License, in addition to the state HVACR Tech license, if you plan to work in the county, in one or more of the following categories:
      - Full Journeyman
      - Heating Service
      - Cooling Service
      - Hydronic Systems
      - Domestic Refrigeration
      - Heating System Installation
      - Cooling System Installation
      - Vent and Duct Systems Installation
      - General Refrigeration
      - Oil Burner Service
HVAC Contractor:
- License issued through: Maryland Department of Labor, Licensing and Regulation Division of Occupational and Professional Licensing
- Licenses required:
  - Master HVACR Contractor- must have been licensed as a Journeyman HVACR Tech for three years and worked under the supervision of a licensed Master for two years and pass the Master HVACR Contractor exam
  - Master Restricted HVACR Contractor –must have been licensed as a Journeyman HVACR Tech for three years and worked under the supervision of a licensed Master for two years and pass the Master HVACR Restricted Contractor exam
  - Limited HVACR Contractor – must have been licensed as a Journeyman HVACR Tech for three years and worked under the supervision of a licensed Master HVACR Contractor for two years, plus pass the Limited HVACR Contractor exam
  - All contractors must carry at least $300,000 in general liability insurance and $100,000 in property damage insurance

Massachusetts

HVAC Technician:
- Licenses issued through: Massachusetts Executive Office of Public Safety and Security Department of Public Safety, and Massachusetts Office of Consumer Affairs and Business Regulation Division of Professional Licensure
- Licenses offered:
  - Refrigeration Technician, with the following levels:
    - Apprentice– must register with the Massachusetts Executive Office of Labor and Workforce Development Division of Apprentice Standards and find a program to gain experience and training
    - Technician– must fulfill training/experience requirements in one of the following ways prior to sitting for examination:
      - Provide Certificate of Completion of Apprenticeship and documentation of working for 6000 hours as a Refrigeration Apprentice, including 250 hours in refrigeration coursework (100 hours of theory and 150 hours electrical code training)
      - OR
      - Provide Certificate of Completion of Apprenticeship and documentation of working for 4000 hours as a Refrigeration Apprentice, including 500 hours in refrigeration coursework (250 hours in shop work, 100 hours theory, and 100 hours electrical code training)
      - OR
      - Provide Certificate of Completion of Apprenticeship and documentation of working for 2000 hours as a Refrigeration Apprentice, including 1000 hours in refrigeration coursework (700 hours shop work, 100 hours theory, and 100 hours electrical code training)
  - Oil Burner Technician (certificate), with the following levels:
    - Apprentice- must register with the Massachusetts Department of Public Safety and pay fee
    - Technician –
      - Group 1 (Unrestricted Power Burners)- should have 5-7 years of experience in oil burners and classroom education/training
      - Group 2 (Power Burners 1 and 2 Oil)- should have 26 weeks of classroom education/training and complete an apprenticeship
      - Group 3 (Gravity Feed) – experience working on non-pressurized oil burners
  - Sheet Metal Worker, with the following levels:
    - Apprentice– Must register with the Board of Examiners of Sheet Metal Workers
    - Journeyman –
      - J-1 – Unrestricted: must complete 8000 hours of practical experience and 750 hours of classroom education over five years, and pass exam
      - J-2- Restricted: must complete 4800 hours of practical experience and 450 hours of classroom education over three years, and pass exam
HVAC Contractor:
- License issued through: Massachusetts Executive Office of Public Safety and Security Department of Public Safety
- Licenses:
  - Refrigeration Contractor
    - Must have 2000 hours of practical experience as a licensed Refrigeration Technician
    - Must complete 100 hours of approved refrigeration classroom education
    - Must pass exam
  - Construction Supervisor’s License
    - Only necessary if you plan to run a refrigeration contracting business
    - Three levels:
      - Unlimited- may work on buildings less than 35,000 square feet
      - Limited- may work on one-or two-family dwellings, any size
      - Specialty- may supervise types of construction, such as solid fuel burning

Michigan

HVAC Technician:
- Licenses issued through: Michigan Department of Licensing and Regulatory Affairs
- Licenses offered through examination:
  - Boiler Operator and Stationary Engineer
  - Boiler Installer
  - Boiler Repairer
- Local licensing:
  - Detroit:
    - Licenses issued through: City of Detroit Boiler Division
    - Licenses offered:
      - 1^st and 2^nd Class Refrigeration Operator– must have two years of experience in refrigeration equipment operation and pass examination
      - 3^rd Class Refrigeration Operator- must have three months experience in operating non-domestic refrigeration equipment, or pass a course in such, and pass examination
      - 1^st Class Stationary Engineer – must have held a 2^nd Class Stationary Engineer license for two years and pass examination
      - 2^nd Class Stationary Engineer– must have held a 3^rd Class Stationary Engineer license for one year and pass examination
      - 3^rd Class Stationary Engineer– must have held a High Pressure Boiler Operator’s license for one year and pass examiantion
  - Grand Rapids-
    - Licenses issued through: City of Grand Rapids Development Center, Building Inspections
    - Licenses offered:
      - Boiler Engineer- must have three years of experience as a Boiler Operator and pass examination
      - Boiler Operator– must have one year of experience under a licensed Boiler Engineer and pass examination
      - Specialty Operator- must be trained on specialty equipment and pass examination
  - Other cities, such as Dearborn and Saginaw, also have local licensure requirements for HVAC workers. Consult your local jurisdiction for more information.
HVAC Contractor:
- Licenses issued through: Michigan Department of Licensing and Regulatory Affairs, Bureau of Construction Codes, Mechanical Division
- License required:
  - Mechanical Contractor, with the following classifications, each of which you may earn by possessing three years of experience in the classification and passing an exam:
    - Hydronic heating and cooling and process piping
    - HVAC equipment
    - Ductwork
    - Refrigeration
    - Limited heating service
    - Unlimited heating service
    - Limited refrigeration and air conditioning service
    - Unlimited refrigeration and air conditioning service
    - Fire suppression
    - Specialty licenses:
      - Solar Heating and Cooling
      - Solid Fuel and Vented Decorative Gas Appliances
      - LP Distribution Piping
      - Fuel Gas Piping
      - Fuel Gas Piping and Venting

Minnesota

HVAC Technician:
- State licensing not required
- Local licensing:
  - Minneapolis- the Minneapolis Community Planning & Economic Development, Construction Code Services issues Certificate of Competency Cards in the to qualified Journeymen who have completed four years of practical experience as an apprentice and 144 hours of classroom education who pass examinations in the following categories:
    - Fuel Gas
    - Plumber/Gasfitter
    - Refrigeration
    - Warm Air Ventilation
    - Steam and Hot Water
    - (To become a Master, you must have one year of experience as a journeyman, and at least five total years of practical experience, and pass an exam)
  - Bloomington- the Bloomington Building and Inspections Division licenses HVAC and Gas Installer- A through examination
  - Other jurisdictions throughout Minnesota have local licensing requirements, including St. Paul and St. Cloud. Contact your local jurisdiction for its requirements.

HVAC Contractor:
- State licensing not required; however, the Minnesota Department of Labor and Industry states that all Mechanical Contractors must file a $25,000 surety bond with the department
- Local licensing: check with your local jurisdiction, as codes vary, but examples of local HVAC contractor licensing requirements in the state include:
  - St. Cloud- The City of St. Cloud Building Safety Department requires:
    - Ventilation Contractor’s License– You must provide a copy of your Mechanical Contractor Bond Certificate from the state, a Certificate of Liability Insurance for $100,000/$500,000/$250,000 naming the City of St. Cloud as Certificate Holder, and proof of Workers Compensation insurance
    - Heating Contractor’s License– You must hold a Master Certificate in the city or pass an examination in order to obtain this license

Mississippi

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Mississippi State Board of Contractors
- License: Mechanical Contractor, with the following classifications available:
  - Boiler Installation and Repair
  - Ductwork for Heating, A/C and Ventilation
  - Energy Management
  - Fueling Systems
  - Heat, A/C, Ventilation
  - Heat Exchangers and Repairs
  - Incinerator Construction
  - Instrumentation, Controls and Energy Management-Mechanical
  - Process Piping
  - Refrigeration
- Requirements:
  - Register business name with Mississippi Secretary of State’s office
  - Obtain Mississippi Tax ID Number or Federal Tax ID Number
  - Provide certificate of general liability coverage
  - Provide certificate of workers compensation insurance
  - Provide a qualifying party on application
  - Pass a Law and Business Management exam
  - Pass a trade exam

Missouri

HVAC Technician:
- State license not required
- Local licensure, including (but not limited to):
  - Louis County – issued through St. Louis County Board of Examiners for Mechanical Licensing in HVAC Servicer-Installer, Sheet Metal, or Pipe Fitter. Requirements-
    - Apprentice-enroll in apprenticeship program and obtain an apprentice license
    - Journeyman– complete 7500 hours of apprenticeship combining practical experience and classroom education and pass an examination
  - St. Charles City- issued through City of St. Charles Community Development in HVAC/Tinner license – just involves filing an application yearly with the city and paying a $50 annual fee
HVAC Contractor:
- State licensing not required
- Local licensure, including (but not limited to):
  - Jefferson County – issued by the Jefferson County Code Commission:
    - Mechanical License for contractors
  - St. Charles County- issued by the St. Charles County Building and Code Enforcement Division:
    - Mechanical Contractor– Class A (unlimited size/power system) or Class B (limited to 20 tons cooling capacity/unit or 500,000 BTUs)
      - Must pass exam through International Code Council
      - Must provide $10,000 surety bond
      - Must provide $500,000 liability insurance
  - Kansas City- issued by the City Permits Division:
    - Heating & Ventilating Supervisor
      - Requires three years of experience in HVAC
      - Must be age 21 or older
      - Must pass HVAC mechanical exam

Montana

HVAC Technician:
- Licensure not required
HVAC Contractor:
- Licensure not required; however, you must register with the state’s Department of Labor and Industry, using one of these methods:
  - Independent Contractor Exemption Certificate (ICEC)- If you plan to work as a sole proprietor with no employees
    - Does not require you to carry workers compensation insurance on yourself
    - No testing or experience required, just file application and fee
  - Construction Contractor Registration (CR)- If you plan to form a corporation and hire employees
    - Requires proof of workers compensation insurance
    - No testing or experience required, just file application and fee

Nebraska

HVAC Technician:
- No state licensing required
- Licensing at the local level: all HVAC Tech licensing in Nebraska is at the city and town level. Some examples of licensure requirements for larger cities in Nebraska include:
  - Lincoln- issued through the Board of HVAC Examiners:
    - Mechanical Technician, with the following levels:
      - Apprentice- must register with the Building & Safety Department in order to work under the supervision of a Master Contractor
      - Journeyman- must pass an examination
  - Fremont- issued through the Department of Building Permits & Inspections:
    - Electrical, with the following levels:
      - Apprentice- must register with the city and obtain a Nebraska State Apprentice Electrician card
      - Journeyman – must pass an examination by the Nebraska State Electrical Board
    - Plumbing, with the following levels:
      - Apprentice-must register with the city
      - Journeyman –must pass a recognized examination (usually through National Inspection Testing and Certification Corporation or Educational Testing Service)
    - Mechanical, with the following levels:
      - Apprentice -must register with the city
      - Journeyman -must pass a recognized examination(usually through National Inspection Testing and Certification Corporation or Educational Testing Service)
    - Steamfitter, with the following levels:
      - Apprentice- must register with the city
      - Journeyman – must pass a recognized examination(usually through National Inspection Testing and Certification Corporation or Educational Testing Service)
    - Water Conditioner, with the following levels:
      - Apprentice –must register with the city
      - Journeyman – must pass a recognized examination(usually through National Inspection Testing and Certification Corporation or Educational Testing Service)
  - Other local jurisdictions in Nebraska have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC Tech there
HVAC Contractor:
- State licensing:
  - Licensed through the Nebraska Department of Labor
  - License:
    - General Contractor
      - Must provide workers compensation insurance if you have employees
- Local licensing:
  - Lincoln- – issued through the Board of HVAC Examiners:
    - Mechanical Master Contractor- must pass examination and maintain liability insurance
  - Fremont- issued through the Department of Building Permits & Inspections:
    - Master Electrical, Mechanical, Plumbing Licenses:
      - Must pass a recognized examination through the Nebraska State Electrical Board, (National Inspection Testing and Certification Corporation or Educational Testing Service
      - Must carry Certificate of Liability Insurance with the City of Fremont
  - Other local jurisdictions in Nebraska have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a contractor there

Nevada

HVAC Technician:
- No state license required
- Clark County requires you to hold a Journeyman-level HVAC Mechanic License, issued through the International Code Council
  - Must pass an examination
HVAC Contractor:
- License issued through: Nevada State Contractors Board
- Licenses (you must have at least one of the following:
  - Specialty C-21, Refrigeration and Air Conditioning Contractor
  - Sub specialty C-21a – Refrigeration
  - Sub specialty C-21b- Air conditioning
  - Sub specialty C-21c- Sheet Metal
  - Sub specialty C-21d- Maintenance
  - Sub specialty C-21e- Solar air conditioning
  - Sub specialty C-21f- Chilled and hot water systems
  - Sub specialty C-21g- Industrial piping
- Requirements:
  - Complete four years of experience at a minimum journeyman level in the HVAC profession
    - Three years of the experience requirement may be fulfilled by graduating from an accredited HVAC technical school training program
  - Meet financial responsibility requirements based upon the monetary limit for contracts you can take on (based upon your financial status)
  - Submit application and pass examinations for each category above in which you wish to be licensed
  - Pass a trade exam
  - Pass Construction Management Survey exam on business management skills
  - Secure a bond

New Hampshire

HVAC Technician:
- Licenses issued through: New Hampshire Department of Safety Building Safety & Construction Mechanical Safety Section
- Licenses offered:
  - Oil Heating Technician (voluntary certification, not mandatory)
    - Must have 4000 hours of field experience
    - Must possess one of the following certificates:
      - National Oilheat Research Alliance (NORA) Silver Certificate
      - National Oilheat Research Alliance (NORA) Gold Certificate
      - North American Technician Excellence (NATE)- need both of the below certificates:
        
        Oil Heating Installation Module
        
        Oil Heating Service Technician Module
  - Gas Fitter, with the following levels:
    - Trainee– must submit application and endorsement letter signed by your master/gas sponsor
    - Fuel Gas Installation Tech- must have 1000 hours of practical experience and 100 hours of classroom education; and pass an examination
    - Fuel Gas Service Tech- must have 2000 hours of practical experience and 140 hours of classroom education; and pass examination
    - Hearth System Installation and Service Tech- must have 2000 hours of practical experience and 60 hours of classroom education; and pass examination
HVAC Contractor:
- Registration through: New Hampshire Department of Safety Building Safety & Construction Mechanical Safety Section
- Registration:
  - Mechanical Business Entity- must list all licensed technicians on application, with one designated as a responsible managing employee

New Jersey

HVAC Technician:
- No license required
HVAC Contractor:
- License issued through: New Jersey State Board of Examiners of Heating, Ventilating, Air Conditioning and Refrigeration (HVACR) Contractors
- License required:
  - Master HVACR Contractor
- Licensure requirements— meet them through one of the following:
  - Hold a bachelor’s degree in HVACR and one year of HVAC experience;
  - OR
  - Hold a bachelor’s degree in a closely related field and three years of HVAC experience;
  - OR
  - Complete a vocational training program and hold two years of experience;
  - OR
  - Complete a four year HVACR apprenticeship and one year of experience in HVAC
- You must also post a $3000 guarantor bond and hold $500,000 liability insurance

New Mexico

HVAC Technician:
- Certificate issued through: New Mexico Regulation and Licensing Department
- Certificates offered: Journeyman Certificates of Competence in these categories:
  - Journeyman gas fitter
    - Requires 4000 hours of experience working under a licensed contractor
    - Must pass JG exam
  - Journeyman refrigeration
    - Requires 4000 hours of experience working under a licensed contractor
    - Must pass JR exam
  - Journeyman plumber and natural gas fitter
    - Requires 4000 hours of experience working under a licensed contractor
    - Must pass JPG exam
  - Journeyman boiler operator- low pressure
    - Requires 1000 hours of experience working under a licensed contractor
    - Must pass B01 exam
  - Journeyman boiler operator – high and low pressure
    - Requires 1000 hours of experience working under a licensed contractor
    - Must pass B02 exam
HVAC Contractor:
- License issued through: New Mexico Regulation and Licensing Department
- Licenses: Must obtain 8000 hours of experience to apply and test for one of the following contractor’s licenses:
  - MM-2: Natural Gas Fitting Contractor
  - MM-3: Heating, Ventilation and Air Conditioning Contractor
  - MM-4: Heating, Cooling and Process Piping Contractor
  - MM-98: Mechanical Contractor (covers all of the above and MM-1, Plumbing Contractor)
- You must obtain a surety bond for $10,000 before your contractor’s license will be issued

New York

HVAC Technician:
- No state licensing required
- Local licensing- at the city level, including (but not limited to):
  - New York City
    - High Pressure Boiler Operating Engineer – issued by New York City Building Department, must meet ONE of these qualifications to sit for the exam:
      - Completed five years of employment as a Fireman, Oiler, Journeyman Boiler-Maker, General Assistant or Machinist in New York City
      - OR
      - Possess a degree in Mechanical Engineering and one year of experience in operating and maintaining high-pressure boilers in New York City
      - OR
      - Hold an Engineer Certificate for four years
      - OR
      - Complete five years of experience in supervision, care, operation and maintenance of steam generating plant of a governmental building and one year of experience in New York City
      - OR
      - Complete a two-year registered apprenticeship and have three years of experience in New York City
      - OR
      - Held a Commission from the National Board of Boiler and Pressure Vessel Inspectors for seven years
      - OR
      - Held the Qualifications of High Capacity Fossil Fuel Operator certification from ASME and five years of experience
      - OR
      - Held a high pressure certification/license from another jurisdiction for five years
    - Oil Burning Equipment Installer – Class A or Class B -issued by New York City Building Department
      - Class A requires four years of experience
      - Class B requires three years of experience
      - Must pass written and practical examinations
    - Refrigeration Operating Engineer Certificate of Qualification- issued by Fire Department of New York, to qualify for the exam you must meet ONE of these qualifications:
      - Completed one year of experience
      - OR
      - Completed 200 hours of training from an approved school
      - OR
      - Hold a High Pressure Boiler Operating Engineer license
  - Syracuse
    - Licenses are issued through the Division of Code Enforcement, and include:
      - Class A Master HVAC Mechanical License
        
        Must have 10 years of experience, with five of those working on installation and maintenance and three on new construction
        
        Must pass examination
      - Class B Limited HVAC Mechanical License
        
        Must have five years of HVAC experience, with three in installation and maintenance
        
        Must pass examination
      - Class C Residential HVAC Mechanical License
        
        Must have five years of HVAC experience, with three in installation and maintenance
        
        Must pass examination
      - Class M Master Refrigeration Mechanical License
        
        Must have five years of experience
        
        Must pass examination
      - Class R Limited Refrigeration Mechanical License
        
        Must have five years of experience
        
        Must pass examination
      - Class S Limited Refrigeration Mechanical License
        
        Must have five years of experience
        
        Must pass examination
      - Class V Special Mechanical License
        
        Must have five years of experience
        
        Must pass examination
      - Other local jurisdictions in New York have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC technician there
HVAC Contractor:
- No state licensing required
- Local licensing – at the city level, including (but not limited to):
  - Buffalo
    - Licenses are issued through the Permit and Inspection Services
    - Contractor license:
      - Must provide certifications for the trade that you and employees possess
      - Must provide General Liability Insurance certificate
      - Must provide proof of business name
      - Must provide proof of workers’ compensation insurance
  - Ithaca
    - Licenses are issued through the Building Division
    - HVAC Contractor certificate of registration:
      - Must provide Certificate of Liability Insurance
      - Must provide Certificate of Workers Compensation Insurance
      - Must provide Disability Insurance
  - Other local jurisdictions in New York have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC contractor there

North Carolina

HVAC Technician:
- License not required at this time (technician licensure is being considered by state legislature)
HVAC Contractor:
- Licenses issued through: North Carolina State Board of Refrigeration Examiners, North Carolina State Board of Examiners of Electrical Contractors and North Carolina State Board of Examiners of Plumbing, Heating and Fire Sprinklers Contractors
- Licenses offered:
  - Commercial Refrigeration Contractor
    - Must have 4000 hours of commercial refrigeration experience (up to half of this experience may be substituted with academic or technical training in the field)
    - Must pass an examination
  - Transport Refrigeration Contractor
    - Must have 4000 hours of commercial refrigeration experience (up to half of this experience may be substituted with academic or technical training in the field)
    - Must pass an examination
  - Heating, Group No. 1 Contractor
    - Must have two years of experience (one year may be substituted by academic/technical training in the field)
    - Must pass an examination
  - Heating, Group No. 2 Contractor
    - Must have two years of experience (one year may be substituted by academic/technical training in the field)
    - Must pass an examination
  - Heating, Group No. 3 Contractor
    - Must have two years of experience (one year may be substituted by academic/technical training in the field)
    - Must pass an examination
  - Fuel Piping Contractor
    - Must have one year of experience (half of this may be substituted by academic/technical training in the field)
    - Must pass an examination
  - Electrical Contractor, with the following classifications:
    - Limited
      - Must have four years of experience, with two of the years being primary experience
      - Must pass an examination
    - Intermediate
      - Must have six years of experience, four of which is primary
      - Must pass an examination
    - Unlimited
      - Must have seven years of experience, five of which is primary
      - Must pass an examination
- All contractors must also provide a statement of bonding ability and/or a surety bond

North Dakota

HVAC Technician:
- State licensing not required
- Local licensing- at the city level, including (but not limited to):
  - Fargo- licensed through the City of Fargo Business Licensing Department:
    - Fuel Gas, with the following levels:
      - Journeyman
      - Master
    - Mechanical, with the following levels:
      - Journeyman
      - Master
    - Three years of experience is necessary to take the examinations, and training may be substituted for experience
  - Minot- licensed through the Heating & Air Conditioning Board:
    - HVAC Installer, with the following levels:
      - Apprentice– must register with the city and have a job placement and training lined up
      - Journeyman- Must have four years/7600 hours of apprentice experience and pass an examination
      - Master- Must have two years/3400 hours of journeyman experience and pass an examination
  - Other local jurisdictions in North Dakota have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC technician there
HVAC Contractor:
- Licensed at the state level by the North Dakota Secretary of State
  - Contractor License – requirements:
    - Application and fee
    - Certificate of insurance with liability coverage
    - Workers compensation certificate of insurance
    - Business name registered with Secretary of State
- Local licensing- at the city level, including (but not limited to):
  - Grand Forks – installer and contractor licenses needed and issued through the Department of Inspections:
    - Mechanical Contractor, with the following levels
      - Journeyman Mechanical Installer– must pass examination and file registration with city
      - Master Mechanical Installer- must pass examination and file registration with city
    - A Mechanical Contractor in Grand Forks must possess a North Dakota State Contractors License, a $5000 license and permit bond, and a certificate of insurance
  - Williston – contractor licenses issued through the Department of Building Safety:
    - HVAC Contractor, with the following levels:
      - Journeyman Mechanic
      - Master Mechanic- must include a Certificate of Liability Insurance
    - For both levels, you must:
      - File application with fees
      - List your years of experience
  - Other local jurisdictions in North Dakota have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC contractor there

Ohio

HVAC Technician:
- No licensure required
HVAC Contractor:
- Licenses issued through: Ohio Construction Industry Licensing Board
- License required:
  - HVAC Contractor
    - Must have five years of HVAC Technician experience to qualify to sit for the exam
    - Must carry $500,000 contractor liability coverage

Oklahoma

HVAC Technician:
- Licenses issued through: Oklahoma Construction Industries Board
- Licenses offered:
  - Mechanical Apprentice– Must register with the state and work under a licensed Mechanical Contractor
  - Mechanical Journeyman
    - In order to qualify to sit for the exam, you must:
      - Work for three years as a Mechanical Apprentice,
      - OR
      - Earn an HVAC associate degree with 1000 hours of education/training and work for one year as a Mechanical Apprentice,
      - OR
      - Earn a vocational diploma with 500 hours of education/training and work for two years as a Mechanical Apprentice,
      - OR
      - Earn a vocational diploma with 375 hours of education/training and work for two and a quarter years as a Mechanical Apprentice,
      - OR
      - Earn a vocational diploma with 334 hours of education/training and work for two and a third years as a Mechanical Apprentice,
      - OR
      - Earn a vocational diploma with 250 hours of education/training and work for two and a half years as Mechanical Apprentice
    - Categories of HVAC Journeyman licenses available include:
      - HVAC Limited Journeyman
      - HVAC Unlimited Journeyman
      - Limited Residential Journeyman
      - Refrigeration Journeyman
      - Natural Gas Piping Journeyman
      - Process Piping Journeyman
      - Sheet Metal Journeyman
      - Ground Source Piping Journeyman
      - Petroleum Refinery Process Piping Journeyman
      - Medical Gas Journeyman
HVAC Contractor:
- Licenses issued through: Oklahoma Construction Industries Board
- Licenses offered:
  - Mechanical Contractor- In order to qualify to sit for the exam, you must:
    - Work for three years as a Mechanical Journeyman,
    - OR
    - Earn an HVAC associate degree with 1000 hours of education/training and work for one year as a Mechanical Journeyman,
    - OR
    - Earn a vocational diploma with 500 hours of education/training and work for two years as a Mechanical Journeyman,
    - OR
    - Earn a vocational diploma with 375 hours of education/training and work for two and a quarter years as a Mechanical Journeyman,
    - OR
    - Earn a vocational diploma with 334 hours of education/training and work for two and a third years as a Mechanical Journeyman,
    - OR
    - Earn a vocational diploma with 250 hours of education/training and work for two and a half years as Mechanical Journeyman
  - Categories of Mechanical Contractor licenses available include:
    - HVAC/R Limited Contractor
    - HVAC/R Unlimited Contractor
    - Refrigeration Contractor
    - Natural Gas Piping Contractor
    - Process Piping Contractor
    - Sheet Metal Contractor
    - Ground Source Piping Contractor
  - As a Mechanical Contractor in Oklahoma, you must also:
    - Secure a $5000 Corporate Surety Bond
    - Carry a Certificate of General Liability insurance in the amount of $50,000

Oregon

HVAC Technician:
- Licenses issued through: Oregon Construction Contractors Board
- License required:
  - Limited Energy Technician Class B (LE/B)-you may qualify to sit for the exam in one of the following ways:
    - Complete an approved apprenticeship in Oregon- you must register with the Oregon Apprenticeship and Training Division and enroll in an approved program; you will receive 8000 hours/four years of work experience and 144-192 classroom training hours each year,
    - OR
    - Complete 288 hours of classroom training and 4000 hours of work experience and a 32 hour board-approved training program,
    - OR
    - Complete 8000 hours of work experience outside of Oregon and a 32 hour board approved training program
HVAC Contractor:
- Licenses issued through: Oregon Construction Contractors Board
- License required:
  - Limited Specialty Contractor HVAC/R (LHR)- you may qualify to site for the exam by meeting ALL of the following requirements:
    - Completing 400 hours/four years of experience in installation AND completing specialized training through a school, apprenticeship, or on the job, in one of these specialized HVAC/R areas:
      - Service
      - Maintenance
      - Electrical Repair
      - Installation/replacement
    - Completing 16 hours of pre-exam training on law and business practices
    - Once you pass the exam, you must:
      - Indicate which endorsement you want on your license:
        
        Residential
        
        Commercial
        
        Residential and Commercial
      - File your business name with the Secretary of State
      - Hold a CCB surety bond
      - Obtain general liability insurance
      - Obtain workers compensation insurance

Pennsylvania

HVAC Technician:
- State licensing not required
- Local licensing- at the city level, including (but not limited to):
  - Philadelphia- licenses issued through the City of Philadelphia Business Services Department
    - Licenses offered:
      - Sheet Metal Systems Apprentice– must enroll in a Registered Sheet Metal Technician Apprentice Program
      - Sheet Metal Systems Technician – must complete a Registered Sheet Metal Technician Apprentice Program and pass the International Code Council’s Sheet Metal Technician examination
      - Engineer License- Boiler, Stationary and Refrigeration-
        
        Grade A- Steam Boiler, Stationary and Refrigeration Engineer- must pass the International Code Council exam
        
        Grade B- Refrigeration Engineer – must pass the International Code Council exam
      - Warm Air Installer – must pass the International Code Council’s Warm Air Installer examination
  - Reading- licenses issued through the Building & Trades Code Enforcement Department
    - Mechanical Journeyman– You must fulfill the following requirements:
      - Earn a Certificate of Completion of PA Apprenticeship and training Council-approved Apprenticeship, showing that you completed four years of apprenticeship training, consisting of 2000 work hours/year, and classroom instruction in your trade
      - OR
      - Complete eight years of work experience under a licensed Master Electrician, Master Plumber or Mechanical Contractor
      - AND
      - Pass the City of Reading Mechanical Journeyman exam
  - Other local jurisdictions in Pennsylvania have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC technician there
HVAC Contractor:
- State licensing not required
- Local licensing- at the city level, including (but not limited to):
  - Pittsburgh – licenses issued through the Department of Permits, Licenses and Inspections
    - HVAC Contractor– must meet the following requirements:
      - Possess four years of HVAC construction experience
      - Hold a General Liability Insurance certificate for $300,000 listing the City of Pittsburgh as Certificate Holder
      - Register with the city for taxes, tax ID etc.
      - Pass the International Code Council certification exam for Pennsylvania Standard Master Mechanical Contractor
    - Pottstown- licenses issued through the Department of Economic Development
      - Contractor- ICC Required- both of these require that you pass the ICC examination in your area:
        
        Standard Master Mechanical- A/C
        
        Standard Master Mechanical- Heat
      - You must also:
        
        Carry a Certificate of General Liability Insurance with the Borough of Pottstown as certificate holder
        
        Carry a Certificate of Workers Compensation Insurance with the Borough of Pottstown as certificate holder
      - Other local jurisdictions in Pennsylvania have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC contractor there

Rhode Island

HVAC Technician:
- Licenses issued through: Rhode Island Department of Labor and Training, Division of Professional Regulation
- Licenses offered:
  - Sheet Metal Technician
    - Apprentice– must register with the state and enroll in a state- approved program
    - Journeyperson Class I- must complete a four year state-approved apprenticeship and pass an exam
    - Journeyperson Class II (Limited)– must complete 4000 hours/288 classroom hours in a state-approved apprenticeship and pass an exam
  - Refrigeration/Air Conditioning Technician
    - Apprentice– must register with the state and enroll in a state- approved program
    - Journeyperson Class I- must complete a 10,000 hour/five year, with 144 classroom hours per year in a state-approved apprenticeship and pass an exam
    - Journeyperson Class II (limited)- must complete a 4000 hours on the job training, with 288 hours of classroom training in a state-approved apprenticeship program, and pass an exam
  - Pipefitter
    - Apprentice– must register with the state and enroll in a state-approved program
    - Journeyperson Class I (Unlimited)– must complete a 5 year/10,000 hours of on the job training and 144 hours classroom training per year in a state-approved apprenticeship and pass an exam
    - Journeyperson Class II (Limited)- must complete 4000 hours of on the job training and 288 hours of classroom education in a state-approved apprenticeship, and pass exam
HVAC Contractor:
- Licenses issued through: Rhode Island Department of Labor and Training, Division of Professional Regulation
- Licenses offered:
  - Sheet Metal Master Contractor Class I – must have held Sheet Metal Journeyperson I license for one year and pass a contractor exam
  - Sheet Metal Master Contractor Class II– must have held Sheet Metal Journeyperson II license for three years and pass exam
  - Pipefitter Master Contractor Class I- must have held a Pipefitter Journeyperson I or Pipefitter Master II license for a year and pass exam
  - Pipefitter Master Contractor Class II- Must have held a Pipefitter Journeyperson II license for three years and pass exam
  - Refrigeration Master Contractor Class I- must have held a Refrigeration Journeyperson I license for one year or a Refrigeration Master II license for one year
  - Refrigeration Master Contractor Class II-must have held a Refrigeration Journeyperson Class II license for three years and pass an exam
  - Contractor Master
    - Pipefitting
      - Must have a Bachelor of Science in Mechanical Engineering and four years of experience in pipefitting, OR
      - Must have a Bachelor of Science in Business Administration and four years of experience in pipefitting, AND
      - Must pass an exam
    - Refrigeration
      - Must have a Bachelor of Science in Mechanical Engineering and four years of experience in refrigeration/AC, OR
      - Must have a Bachelor of Science in Business Administration and four years of experience in refrigeration/AC, AND
      - Must pass an exam
    - Sheet Metal
      - Must have a Bachelor of Science in Mechanical Engineering and four years of experience in sheet metal, OR
      - Must have a Bachelor of Science in Business Administration and four years of experience in sheet metal, AND
      - Must pass an exam
  - Master Mechanical Contractor– must have worked for ten years as a Rhode Island Licensed Pipefitter Master I AND ten years as a Rhode Island Licensed Refrigeration Master I; no exam required
- All contractors must:
  - Carry necessary Workers Compensation insurance
  - Obtain correct tax information
  - Have a working knowledge of State and Federal OSHA laws
  - Have a working knowledge of the BOCA State Building Code (particularly the International Mechanical Code)

South Carolina

HVAC Technician:
- Licensure not required
HVAC Contractor:
- License issued through: South Carolina Department of Labor, Licensing and Regulation Residential Builders Commission
- License required:
  - Residential Specialty HVAC License – must have at least one year of HVAC experience, no examination required, must submit application with proper fees and furnish original surety bond if cost of construction is over $5000, in the amount of $10,000

South Dakota

HVAC Technician:
- License not required
HVAC Contractor:
- No state license required
- Local licensing- contractors are licensed at the city level in cities including (but not limited to):
  - Rapid City – licenses are issued through the City of Rapid City Building Inspection Division
    - Mechanical Contractor- must have two years of experience as Journeyman in your field and pass and exam
    - Gas Fitting Contractor- must have three years of experience as Journeyman in Fuel Gas and pass and exam
    - Both types of contractor license applications must be accompanied by:
      - Copy of Excise Tax Certificate
      - General Liability Certificate of Insurance naming “City of Rapid City” as Certificate Holder
      - Workman’s Compensation Certificate of Insurance
      - Correct fees
  - Sioux Falls- licenses are issued through the City of Sioux Falls Building Services Department
    - Master Mechanical Contractor – must have four years of experience, pass the Master Mechanic exam
    - Refrigeration Contractor- must have four years of experience and pass the Refrigeration exam
    - Both types of contractor license applications must be accompanied by:
      - $10,000 surety bond
      - Correct fees
  - Other local jurisdictions in South Dakota have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC contractor there

Tennessee

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Tennessee Board for Licensing Contractors
- Licenses required for projects $25,000 and up:
  - Mechanical Contractor (CMC) – must have three years of work experience in each of the following classifications for which you wish to test –
    - Full CMC – must pass exam
    - Plumbing and Gas Piping (CMC-A)– must pass exam
    - Process Piping (CMC-B)- no exam required
    - HVAC, Refrigeration and Gas Piping (CMC-C) – must pass exam
      - Solar HVAC (Geothermal) – must pass exam
    - Pneumatic Tube Systems (CMC-G)– no exam required
    - Boiler Construction & Repairs (CMC-I) – no exam required
    - Fuel Gas Piping and Systems (CMC-J) – no exam required

Texas

HVAC Technician:
- License issued through: Texas Air Conditioning and Refrigeration Contractors Advisory Board
- Licenses offered:
  - Registered Air Conditioning and Refrigeration Technician– no requirements other than registering with the state and paying the registration fee
  - Certified Air Conditioning and Refrigeration Technician – you may obtain this certification if you have passed an approved certification examination
HVAC Contractor:
- License issued through: Texas Air Conditioning and Refrigeration Contractors Advisory Board
- Licenses offered:
  - Air Conditioning and Refrigeration Contractor
    - Class A – may work on air conditioning and refrigeration equipment of any size or capacity
    - Class B- may only work on equipment of 25 tons cooling capacity or 1.5 million BTUs heating capacity
  - Environmental Air Conditioning Endorsement (E)– allows you to contract environmental air conditioning work
  - Commercial Refrigeration and Process Cooling or Heating Endorsement(R )- allows you to work in commercial air conditioning and refrigerating/process cooling or heating contracting
  - Combined Endorsements (C)
- Licensure requirements:
  - Class A- must provide $300,000 per occurrence and $300,000 aggregate liability insurance
  - Class B- Must provide $100,000 per occurrence and $100,000 aggregate liability insurance
  - Both classes- you must have 48 months of practical air conditioning and refrigeration experience under the supervision of a licensed air conditioning and refrigeration contractor
    - A portion of this experience may be substituted by training as follows:
      - A four-year degree in air conditioning or refrigeration engineering or technology or mechanical engineering can replace 24 months of experience
      - A two-year degree or certification program can replace 12 months of experience
      - A one-year certification/training program can replace six months of experience
  - Both classes must also submit a certificate of insurance to the state

Utah

HVAC Technician:
- License not required
HVAC Contractor:
- License issued through: Utah Division of Occupational and Professional Licensing
- Licenses offered:
  - S350- HVAC Contractor (covers all of the below specializations except S354)
  - S351- Refrigerated Air Conditioning Contractor
  - S352- Evaporative Cooling Contractor
  - S353- Warm Air Heating Contractor
  - S354- Radon Mitigation Contractor
- Requirements:
  - Complete two years/4000 hours of experience in past ten years
  - Pass a trade examination
  - Pass the State of Utah Laws and Rules examination
  - Complete an approved 20-hour pre-license education course; OR obtain a degree in construction management
  - Obtain general liability coverage of $100,000 per incident and $300,000 aggregate

Vermont

HVAC Technician:
- License issued through: Vermont Department of Public Safety
- Licenses required:
  - Electrical Specialist (ES), with the following HVAC-related classifications available:
    - A1- Automatic Gas/Oil Heating
    - C3- Refrigeration and Air Conditioning
  - Licensure requirements:
    - Complete an approved HVAC training program and one year/2000 hours of on the job HVAC experience,
    - OR
    - Complete two years /4000 hours of on the job HVAC experience
HVAC Contractor:
- No licensure required

Virginia

HVAC Technician:
- License issued through: Virginia Department of Professional and Occupational Regulation
- License required: HVAC Tradesman
  - Apprentice: not licensed or required, if you choose to do so you must find your own placement with an employer to gain experience and will begin vocational training from an approved provider
  - Journeyman: license may be obtained by passing an exam once you complete an HVAC apprenticeship program OR complete a HVAC trade school/college program and acquire experience in ONE of the following ways:
    - Bachelor’s degree in a related field plus one year of work experience
    - Associate’s degree from HVAC program plus two years of work experience
    - Obtain four years of work experience and 240 hours of vocational training
    - Obtain five years of work experience and 160 hours of vocational training
    - Obtain six years of work experience and 80 hours of vocational training
    - Obtain seven or more years of work experience and 40 hours of vocational training
    - Obtain ten years of work experience
  - Master: You must be a licensed Journeyman HVAC Tradesman and pass an exam after meeting ONE of the following requirements:
    - Obtain one years of work experience as a licensed journeyman
    - Obtain ten years of work experience in the HVAC trade
HVAC Contractor:
- License issued through: Virginia Department of Professional and Occupational Regulation
- Licenses offered:
  - HVAC Contractor Class A (unlimited with no restriction on job size)
    - Requires Master-level HVAC Tradesman license
    - Requires five years of experience and $45,000 business capital
    - Requires completion of an approved 8-hour pre-education course
  - HVAC Contractor Class B (limited to projects of less than $120,000)
    - Requires Master-level HVAC Tradesman license
    - Requires three years of experience and $15,000 business capital
    - Requires completion of an approved 8-hour pre-education course
  - HVAC Contractor Class C (limited to projects of less than $10,000)
    - Requires Master-level HVAC Tradesman license
    - Requires two years of experience
    - Requires completion of an approved 8-hour pre-education course

Washington

HVAC Technician:
- License issued through: Washington State Department of Labor and Industries
- Licenses: Specialty Electrician HVAC/R 06A or 06B(restricted or unrestricted), with the following levels:
  - Trainee: must be at least 16 years old, apply to the Washington State Department of Labor and Industries for a certificate, and attend an apprenticeship program while you are earning work experience.
  - Journey-level Electrician:
    - 06A– must have 4000 hours working as a trainee, along with 48 hours of classroom education
    - 06B– must have 2000 hours working as a trainee, along with 24 hours of classroom instruction
  - Master Electrician: must be licensed as a journey or specialty level electrician and pass an examination
- Seattle: Must also have one of the following specialty licenses, issued through the Seattle Department of Construction & Inspections:
  - Journey refrigeration mechanic license – Must indicate on the application if you wish to be licensed in Freon only, ammonia only, or all refrigerants
  - Refrigeration operating engineer license
  - Refrigeration and air conditioning contractor’s license
  - Steam engineer and boiler fireman license
  - In order to earn any of the above-mentioned Seattle refrigeration licenses and the gas piping mechanic’s license, you must graduate from an apprenticeship program or provide proof of training at a recognized trade or technical school covering HVAC technology, as well as pass Seattle’s city-administered exam. Boiler licenses only require passing Seattle’s exam.

- Other cities: Tacoma, Spokane, Yakima, Kennewick and Pullman each have their own set of requirements, described here
HVAC Contractor:
- License issued through: Washington State Department of Labor and Industries
- License required: Electrical Contractor
  - Must submit a surety bond to the State of Washington
- Seattle: Must have a Refrigeration and Air Conditioning Contractor’s License, issued through the Seattle Department of Construction & Inspections
  - Must indicate on the application if you wish to be licensed in Freon only, ammonia only, or all refrigerants

West Virginia

HVAC Technician:
- Licenses issued through: West Virginia Department of Commerce Division of Labor and West Virginia Fire Commission Office of the State Fire Marshal
- Licenses required:
  - Specialty Electrician- Must complete 4000 hours/two years of HVAC electrical work to sit for the exam. One year may be substituted through related education
  - Plumber, with the following levels:
    - Plumber in Training- Must obtain work experience under the direct supervision of a Master or Journeyman Plumber, no exam required
    - Journeyman Plumber- Must have 8000 hours of plumbing experience and pass exam
    - Master Plumber- Must have 12,000 hours of plumbing experience and pass exam
HVAC Contractor:
- Licenses issued through: West Virginia Department of Commerce Division of Labor
- Licenses required:
  - Contractor Class D- HVAC Classification- must pass Heating, Ventilating & Cooling examination and Business and Law examination, and submit the following with your application and fees:
    - Federal Taxpayers ID Number
    - WV Business Registration Tax Number
    - Unemployment Compensation Number
    - Workers Compensation Policy Number
    - Wage Bond (if you have employees)
    - Certificate of Authority from Secretary of State (if not sole proprietorship)

Wisconsin

HVAC Technician:
- Licensure not required
HVAC Contractor:
- Licenses issued through: Wisconsin Department of Safety & Professional Services
- Licenses required- you must have BOTH of the following:
  - HVAC Qualifier Certification–
    - Must have completed four years/4000 hours of work experience in HVAC,
    - OR
    - Must have completed four years of HVAC schooling
    - OR
    - Must have a combination of education and experience, AND
    - Must pass the HVAC Qualifier exam
  - HVAC Contractor Registration– must submit application and fee

Wyoming

HVAC Technician:
- State licensure not required; however, the Wyoming Trades Certification Program through the Wyoming Association of Municipalities offers a certification program, in which you take an International Code Council (ICC) exam to qualify in the following classifications- passing these exams can make it easier to obtain a position as an HVAC tech in the state:
  - Wyoming Journeyman Gas Pipe Fitter
  - Wyoming Master Gas Pipe Fitter
  - Wyoming Refrigeration Journeyman
  - Wyoming Refrigeration Master
  - Wyoming Journeyman HVAC
  - Wyoming Master HVAC
- Local licensure- licensure may be required at the city level, in cities including (but not limited to):
  - Jackson-
    - HVAC Certificate of Qualification – must pass International Code Council exam
      - Apprentice- no experience required
      - Journeyman- must be an Apprentice for four years
      - Master- must have four years Apprentice experience and 4 years Journeyman experience
    - Other local jurisdictions in Wyoming have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC technician there
HVAC Contractor:
- State licensure not required
- Local licensure- licensure is required at the city level, in cities including (but not limited to):
  - Jackson
    - HVAC Contractor License– must hold HVAC Certificate of Qualification and, along with application and fees, must include:
      - Unemployment insurance proof
      - Surety Bond proof
      - Liability insurance proof
      - Workman’s compensation proof
      - Proof of good standing with State (if a corporation or LLC)
  - Cody
    - Class B HVAC Contractor License- must pass the ICC’s Master HVAC exam, have four years of experience, and submit, along with application and fees:
      - Liability insurance certificate
      - Four letters of recommendation
    - Other local jurisdictions in Wyoming have their own licensing requirements; check with the one in which you plan to work to see what you must do in order to work as a HVAC contractor there