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Compiled from official state licensing boards · Updated May 2026
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.

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
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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