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IMC/UMC

HVAC Contractor Licensing by State

HVAC and refrigeration licensing including EPA Section 608 federal requirements. State mechanical code adoption, contractor classifications, and CE hours.

HVAC Contractor at work
Photo: Airman 1st Class Megan Myhre (Public domain)
50
States covered
50
License profiles
41
State-level licensing
9 hrs
Avg CE per cycle

Click your state · HVAC Contractor licensing

50 states with license data · click a state to view requirements

CE load No CE required 1-11 hrs 12+ hrs No data

Tools for hvac contractors

HVAC Contractor practice test Free exam questions + instant scoring Cost to get licensed All-in first-year estimate Reciprocity map Where your license travels CE renewal calculator Hours, fee & approved courses
AL

Alabama

  • HVAC Contractor
AK

Alaska

  • Mechanical Administrator
AZ

Arizona

  • C-39 Commercial Air Conditioning Contractor
AR

Arkansas

  • Class A HVACR Contractor
CA

California

  • C-20 Warm-Air Heating, Ventilating and AC Contractor
CO

Colorado

Municipal
  • Municipal HVAC License
CT

Connecticut

  • S-1 Unlimited Heating, Piping, and Cooling Contractor
DE

Delaware

  • Master HVACR
FL

Florida

  • Class A Air Conditioning Contractor
GA

Georgia

  • Conditioned Air Contractor Class I
HI

Hawaii

  • C-52 Air Conditioning and Warm Air Heating Contractor
ID

Idaho

  • HVAC Contractor
IL

Illinois

Municipal
  • Municipal HVAC License
IN

Indiana

Municipal
  • Municipal HVAC Contractor
IA

Iowa

  • HVAC Mechanical Contractor
KS

Kansas

Municipal
  • Municipal HVAC License
KY

Kentucky

  • Master HVAC Contractor
LA

Louisiana

  • Mechanical Work Contractor
ME

Maine

  • Propane and Natural Gas Technician
MD

Maryland

  • Master HVACR Contractor
MA

Massachusetts

  • Refrigeration Technician
MI

Michigan

  • Mechanical Contractor
MN

Minnesota

  • Mechanical Contractor (Bond Registration)
MS

Mississippi

  • Mechanical Contractor
MO

Missouri

  • Statewide Mechanical Contractor
MT

Montana

  • Construction Contractor Registration
NE

Nebraska

  • Contractor Registration
NV

Nevada

  • C-21 Refrigeration and Air Conditioning Contractor
NH

New Hampshire

  • Mechanical Business Registration
NJ

New Jersey

  • Master HVACR Contractor
NM

New Mexico

  • MM-98 Mechanical Contractor
NY

New York

Municipal
  • Municipal HVAC License
NC

North Carolina

  • H3 Class I Heating Contractor
ND

North Dakota

Municipal
  • Municipal HVAC License
OH

Ohio

  • HVAC Contractor
OK

Oklahoma

  • HVAC/R Unlimited Contractor
OR

Oregon

  • Limited Maintenance HVAC/R (LHR)
PA

Pennsylvania

Municipal
  • Municipal HVAC License
RI

Rhode Island

  • Refrigeration Master Contractor Class I
SC

South Carolina

  • Mechanical Contractor (HVAC)
SD

South Dakota

Municipal
  • Municipal HVAC License
TN

Tennessee

  • CMC-C Mechanical HVAC/Refrigeration Contractor
TX

Texas

  • Class A Air Conditioning and Refrigeration Contractor
UT

Utah

  • S350 HVAC Specialty Contractor
VT

Vermont

  • C3 Refrigeration and Air Conditioning Specialist
VA

Virginia

  • Master HVAC Tradesman
WA

Washington

  • 06A HVAC/Refrigeration Mechanic
WV

West Virginia

  • HVAC Technician
WI

Wisconsin

  • HVAC Contractor Registration
WY

Wyoming

Municipal
  • Municipal HVAC License

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