State,License type,Holder,Experience,Exam,Bond or insurance,Fee,Reciprocity,Qualifier deadline (days),Citation,Confidence
Alabama,"Statewide, license held by a person",individual,n.c.,yes,"$20,000 performance bond",$220 initial certification; $175 written exam (fees effective 2024-10-14),"Yes, with qualifying reciprocal states",0,Ala. Admin. Code r. 440-X-3; Code of Ala. 1975 s. 34-31-28,clear text
Alaska,"Statewide, license held by a person",individual,n.c.,yes,n.c.,Set by department regulation (AS 08.40.310),Exam may be waived for administrators licensed in another state who meet department qualifications,,Alaska Stat. 08.40.260 to 08.40.300,interpretation needed
Arizona,"Statewide, business license through a qualifier",entity-qualifier,n.c.,n.c.,Surety bond scaled to annual volume (A.R.S. 32-1152),n.c.,n.c.,60,A.R.S. 32-1127.01; A.R.S. 32-1152,clear text
Arkansas,"Statewide, license held by a person",individual,n.c.,yes,n.c.,Class A $200; Class B $150 (2022 application form),By reciprocal agreement or substantially similar out-of-state license,,17 CAR pt. 261 (incl. s. 261-112); HVACR license application (2022),clear text
California,"Statewide, business license through a qualifier",entity-qualifier,n.c.,yes,"$25,000 contractor bond",$450 application; $200 initial license (individual owner) or $350 (entity),n.c.,90,"Cal. Bus. & Prof. Code 7068, 7068.2, 7071.6, 7137",clear text
Colorado,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Searched state plumbing board page (blocked) and statute indexes; see excluded.md,not found
Connecticut,"Statewide, license held by a person",individual,n.c.,yes,n.c.,n.c.,"Yes, with jurisdictions whose requirements are substantially similar or higher",,"Conn. Gen. Stat. ch. 393, ss. 20-330, 20-333, 20-333a",clear text
Delaware,"Statewide, license held by a person",individual,"2 years after a journeyman apprenticeship, or 7 years supervised",yes,n.c.,Set by Division (s. 1824),"Yes, substantially similar states; 7 years of practice if not similar",,24 Del. C. ss. 1821 to 1824,clear text
District of Columbia,"Statewide, license held by a person",individual,5 consecutive years,yes,n.c.,n.c.,n.c.,,"D.C. Code 47-2853.201, 47-2853.202",clear text
Florida,"Statewide, license held by a person",individual,4 years,yes,n.c.,n.c.,n.c.,60,"Fla. Stat. 489.111, 489.119(3)(a), 489.1195",clear text
Georgia,"Statewide, license held by a person",individual,n.c.,yes,n.c.,n.c.,By written agreement with other state boards,0,"Ga. Comp. R. & Regs. 121-3-.05, 121-2-.03; O.C.G.A. 43-14-8 (cited on board form)",clear text
Hawaii,"Statewide, business license through a qualifier",entity-qualifier,n.c.,n.c.,n.c.,n.c.,n.c.,90,"Contractors License Board, Maintain Entity RME Requirements (HAR 16-77)",clear text
Idaho,"Statewide, holder not coded",n.c.,n.c.,n.c.,n.c.,n.c.,n.c.,,"Idaho Code 54-5005 (ch. 50, Installation of HVAC Systems)",interpretation needed
Illinois,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md for searches,not found
Indiana,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md for searches,not found
Iowa,"Statewide, business license through a qualifier",entity-qualifier,n.c.,yes,Public liability insurance and surety bond set by board rule (s. 105.19),n.c.,Reciprocal licenses provided for (s. 105.21),,"Iowa Code ch. 105, ss. 105.18, 105.19, 105.21",clear text
Kansas,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md for searches,not found
Kentucky,"Statewide, license held by a person",individual,n.c.,yes,Insurance required under KRS 198B.668,$250 initial (12 months); $150 exam,n.c.,,"815 KAR 8:010; KRS 198B.667, 198B.668",clear text
Louisiana,State license only above a job value,entity-qualifier,n.c.,yes,n.c.,n.c.,n.c.,,LSLBC classification page (release 2025-08-08); La. R.S. 37:2150 et seq.,clear text
Maine,Trade-limited credential only,individual,n.c.,n.c.,n.c.,n.c.,n.c.,,32 M.R.S. ch. 33 (Oil and Solid Fuel Board),interpretation needed
Maryland,"Statewide, license held by a person",individual,3 years,yes,n.c.,n.c.,n.c.,,"Md. Code, Bus. Reg. 9A-301, 9A-302",clear text
Massachusetts,Trade-limited credential only,individual,n.c.,n.c.,n.c.,n.c.,n.c.,,"Mass.gov, Apply for a Refrigeration Technician License",interpretation needed
Michigan,"Statewide, license held by a person",individual,"3 years or 6,000 hours",yes,n.c.,n.c.,n.c.,90,"MCL 339.5807, 339.5809, 339.5815",clear text
Minnesota,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Department of Labor and Industry licensing page returned 404; see excluded.md,not found
Mississippi,State license only above a job value,n.c.,n.c.,n.c.,n.c.,n.c.,n.c.,,Mississippi State Board of Contractors home page; Miss. Code tit. 31 ch. 3,interpretation needed
Missouri,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md for searches,not found
Montana,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,"Montana DLI, Montana Contractor registration page",not found
Nebraska,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Nebraska DOL contractor registration page timed out; see excluded.md,not found
Nevada,"Statewide, business license through a qualifier",entity-qualifier,n.c.,yes,Set by the board (NRS 624.270),n.c.,n.c.,30,"NRS 624.260, 624.285",clear text
New Hampshire,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md,not found
New Jersey,"Statewide, business license through a qualifier",entity-qualifier,n.c.,yes,n.c.,n.c.,n.c.,,"N.J.S.A. 45:16A-2 as amended by P.L.2018, c.125",clear text
New Mexico,"Statewide, holder not coded",n.c.,4 years,n.c.,n.c.,n.c.,n.c.,,14.6.6 NMAC,clear text
New York,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,NY Department of State licensing services list; see excluded.md,not found
North Carolina,"Statewide, business license through a qualifier",both,Board may require up to 2 years,yes,n.c.,Annual license fee capped at $150,n.c.,,"N.C. Gen. Stat. 87-21, 87-22, 87-26",clear text
North Dakota,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Secretary of State contractor page returned 404; see excluded.md,not found
Ohio,"Statewide, license held by a person",individual,5 years,yes,Contractor liability insurance in an amount set by the board,n.c.,n.c.,90,"Ohio Rev. Code 4740.06, 4740.07",clear text
Oklahoma,"Statewide, license held by a person",individual,4 years (3 as journeyman plus 1),yes,"$5,000 surety bond and $50,000 general liability",$330 ($300 license plus $30 application),n.c.,,59 O.S. 1850.1 et seq.; OAC 158:50; CIB mechanical application,clear text
Oregon,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,See excluded.md,not found
Pennsylvania,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Attorney General home improvement page blocked; see excluded.md,not found
Rhode Island,"Statewide, business license through a qualifier",both,n.c.,n.c.,n.c.,n.c.,n.c.,,R.I. Gen. Laws 28-27-6,clear text
South Carolina,State license only above a job value,entity-qualifier,n.c.,yes,n.c.,n.c.,n.c.,90,S.C. Code 40-11-30 and qualifying party provisions of ch. 11,clear text
South Dakota,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,"SD Department of Labor and Regulation A to Z index (lists plumbing licensing, no HVAC entry)",not found
Tennessee,State license only above a job value,entity-qualifier,n.c.,yes,n.c.,n.c.,n.c.,90,Tenn. Comp. R. & Regs. 0680-01 (rev. November 2025),clear text
Texas,"Statewide, license held by a person",individual,"48 months in the last 72, or 36 months with a technician certification",n.c.,Insurance set by commission rule,n.c.,n.c.,,"Tex. Occ. Code 1302.102, 1302.252, 1302.255",clear text
Utah,"Statewide, business license through a qualifier",entity-qualifier,n.c.,n.c.,n.c.,n.c.,n.c.,60,Utah Code 58-55-304,clear text
Vermont,Trade-limited credential only,individual,n.c.,n.c.,n.c.,n.c.,n.c.,,Vermont Division of Fire Safety licensing page,interpretation needed
Virginia,"Statewide, business license through a qualifier",entity-qualifier,1 year (Class C qualified individual),yes,n.c.,$235 Class C; $380 Class B; $400 Class A,n.c.,,"18VAC50-22-40, 18VAC50-22-100, 18VAC50-22-220",clear text
Washington,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,RCW 18.27.020,not found
West Virginia,"Statewide, holder not coded",n.c.,n.c.,n.c.,n.c.,n.c.,n.c.,,W. Va. Code 21-16 (article index),interpretation needed
Wisconsin,"Statewide, holder not coded",n.c.,n.c.,yes,n.c.,n.c.,n.c.,,DSPS HVAC Qualifier profession page (ch. SPS 305),interpretation needed
Wyoming,No state HVAC contractor license found,n.a.,n.a.,n.a.,n.a.,n.a.,n.a.,,Wyoming State Fire Marshal electrical licensing page,not found