| STATE | LINK |
| Alabama | |
| Alaska | State License not required but may have local community requirementl |
| Arizona | https://roc.az.gov/ |
| Arkansas | https://www.aclb.arkansas.gov/ |
| California | http://www.cslb.ca.gov/ |
| Colorado | State License not required but may have local community requirements |
| Connecticut | https://portal.ct.gov/DCP |
| Delaware | https://dpr.delaware.gov/boards/plumbers/ |
| District of Columbia | https://dlcp.dc.gov/page/boardindustrialtrades |
| Florida | http://www.myfloridalicense.com/DBPR/ |
| Georgia | https://sos.ga.gov/index.php/licensing |
| Hawaii | http://cca.hawaii.gov/pvl/ |
| Idaho | https://dbs.idaho.gov/ |
| Illinois | State License not required but may have local community requirements |
| Indiana | State License not required but may have local community requirements |
| Iowa | https://idph.iowa.gov/pmsb |
| Kansas | State License not required but may have local community requirements |
| Kentucky | https://dhbc.ky.gov/Documents/KYHVAC_CIB 2020.07.20.pdf |
| Louisiana | http://www.lslbc.louisiana.gov/ |
| Maine | State License not required but may have local community requirements |
| Maryland | https://www.dllr.state.md.us/license/hvacr/hvacrlic.shtml |
| Massachusetts | https://www.mass.gov/orgs/engineering-division |
| Michigan | https://www.michigan.gov/lara/ |
| Minnesota | https://www.dli.mn.gov/ |
FIND YOUR STATE'S HVACR LICENSE INFORMATION BY CLICKING THE LINK BELOW
| STATE | LINK |
| Mississippi | https://www.msboc.us/ |
| Missouri | State License not required but may have local community requirements |
| Montana | http://dli.mt.gov/ |
| Nebraska | State License not required but may have local community requirements |
| Nevada | http://www.nvcontractorsboard.com/ |
| New Hampshire | State License not required but may have local community requirements |
| New Jersey | https://www.njconsumeraffairs.gov/ |
| New Mexico | http://www.rld.state.nm.us/ |
| New York | State License not required but may have local community requirements |
| North Carolina | http://refrigerationboard.org/ |
| North Dakota | http://sos.nd.gov/ |
| Ohio | https://www.com.ohio.gov/ |
| Oklahoma | http://cib.ok.gov/ |
| Oregon | https://www.oregon.gov/ccb/pages/index.aspx |
| Pennsylvania | State License not required but may have local community requirements |
| Rhode Island | http://www.crb.ri.gov/ |
| South Carolina | https://www.llr.sc.gov/ |
| South Dakota | State License not required but may have local community requirements |
| Tennessee | https://www.tn.gov/commerce/regboards/contractors.html |
| Texas | https://www.tdlr.texas.gov/ |
| Utah | https://dopl.utah.gov/contractor/index.html |
| Vermont | State License not required but may have local community requirements |
| Virginia | http://www.dpor.virginia.gov/Boards/Contractors/ |
| Washington | https://lni.wa.gov/licensing-permits/ |
| West Virginia | https://labor.wv.gov/Licensing/Contractor_License/Pages/default.aspx |
| Wisconsin | https://dsps.wi.gov/Pages/Professions/HVACContractor/Default.aspx |
| Wyoming | State License not required but may have local community requirements |