| Alabama | Yes | No | Yes | No | https://www.firemarshal.alabama.gov/PDF/FireSprinklerLaw.pdf | |
| Alaska | No | Yes | Yes | No | dps.alaska.gov/Fire/LSIB/fspermits | |
| Arizona | Yes | Yes | No | No | https://dfbls.az.gov/userfiles/files/Fire%20Protection%20Contractor%20Requirements.pdf | |
| Arkansas | Yes | Yes | Yes | Yes | https://www.arfireprotection.org/pdf/SprinklerFittersLicensing.pdf | |
| California | Yes | Yes | Yes | No | https://osfm.fire.ca.gov/divisions/fire-engineering-and-investigations/automatic-fire-extinguishing-systems/ | |
| Colorado | Yes | Yes | Yes | No | https://dfpc.colorado.gov/fire-suppression-system-contractors | |
| Connecticut | Yes | Yes | Yes | No | https://eregulations.ct.gov/eRegsPortal/Browse/RCSA/Title_20Subtitle_20-332Section_20-332-6a/ | |
| Delaware | Yes | Yes | Yes | No | https://statefiremarshal.delaware.gov/wp-content/uploads/sites/110/2017/07/License-Information_References-4_15.pdf | |
| Florida | Yes | Yes | Yes | No | http://www.leg.state.fl.us/statutes/index.cfm?App_mode=Display_Statute&Search_String=&URL=0600-0699/0633/Sections/0633.318.html | |
| Georgia | Yes | Yes | No | No | https://oci.georgia.gov/inspections-permits-plans/buildings-fire-suppression-systems/rules-and-regulations | |
| Hawaii | Yes | Yes | Yes | No | https://cca.hawaii.gov/pvl/files/2014/08/DescriptionofContractorLicenseClassifications.pdf | |
| Idaho | No | No | No | No | Fire Protection Sprinkler Contractor License | Department of Insurance | |
| Illinois | Yes | Yes | No | Yes | Illinois General Assembly - - | |
| Indiana | No | No | No | No | | |
| Iowa | Yes | Yes | No | No | https://www.legis.iowa.gov/docs/code/100c.pdf | https://www.legis.iowa.gov/docs/code/100c.pdf https://www.legis.iowa.gov/docs/iac/chapter/661.276.pdf |
| Kansas | No | No | No | No | | |
| Kentucky | Yes | No | Yes | Yes | https://apps.legislature.ky.gov/law/statutes/chapter.aspx?id=38087 | |
| Louisiana | Yes | No | No | No | https://www.lasfm.org/media/obomofth/life_safety_fire_sprinkler.pdf | |
| Maine | Yes | Yes | Yes | Yes | https://legislature.maine.gov/statutes/32/title32ch20sec0.html | |
| Maryland | Yes | Yes | Yes | Yes | https://mdsp.maryland.gov/firemarshal/Pages/SprinklerContractors.aspx | |
| Massachusetts | Yes | Yes | Yes | Yes | https://malegislature.gov/Laws/GeneralLaws/PartI/TitleXX/Chapter146/Section84 | |
| Michigan | Yes | No | Yes | No | https://www.legislature.mi.gov/(S(b4vticibzw5pxatkvdezkkew))/mileg.aspx?page=getObject&objectName=mcl-407-2016-8 | |
| Minnesota | Yes | Yes | Yes | No | https://www.revisor.mn.gov/statutes/cite/299MMN | https://www.revisor.mn.gov/rules/7512/Licensing Certification/Renewal/Application Process |
| Mississippi | No | No | Yes | No | https://www.msboc.us/?page_id=22 | |
| Missouri | No | No | No | No | | |
| Montana | No | Yes | Yes | Yes | Fire Protection License Program | |
| Nebraska | Yes | Yes | Yes | Yes | https://sfm.nebraska.gov/water-based-fire-protection | |
| Nevada | Yes | Yes | Yes | No | https://www.leg.state.nv.us/Register/2018Register/R132-18AP.pdf | |
| New Hampshire | No | No | No | No | | |
| New Jersey | Yes | Yes | Yes | Yes | https://www.nj.gov/dca/divisions/dfs/pdf/overviewcceunit.pdf | |
| New Mexico | No | No | No | No | https://www.rld.nm.gov/ | |
| New York | Yes | No | No | No | | |
| North Carolina | Yes | Yes | No | Yes | https://www.nclicensing.org/ | |
| North Dakota | No | No | No | No | https://www.legis.nd.gov/cencode/T43C07.pdf?20141004142127 | |
| Ohio | Yes | Yes | Yes | Yes | http://codes.ohio.gov/orc/ | |
| Oklahoma | Yes | Yes | Yes | No | https://oklahoma.gov/labor/licensing/alarm--locksmith--and-fire-sprinkler-licensing.html | |
| Oregon | Yes | No | No | No | | |
| Pennsylvania | No | No | No | No | | |
| Rhode Island | Yes | Yes | Yes | Yes | https://fsc.ri.gov/rules/ | |
| South Carolina | No | No | Yes | No | https://www.scstatehouse.gov/code/t40c010.php | |
| South Dakota | No | No | No | No | | |
| Tennessee | No | No | Yes | No | https://www.tn.gov/commerce/fire/permits-licensing/fire-licensing.html#sprinklers | |
| Texas | Yes | No | No | No | https://www.tdi.texas.gov/fire/fmlisprinkler.html | |
| Utah | Yes | Yes | Yes | Yes | https://firemarshal.utah.gov/licensing-and-certification/fire-sprinkler-systems/ | |
| Vermont | Yes | Yes | Yes | Yes | https://firesafety.vermont.gov/licensing/t3-fire-sprinklers | |
| Virginia | Yes | Yes | Yes | Yes | http://www.dpor.virginia.gov/uploadedFiles/MainSite/Content/Boards/Contractors/A501-27EXINFO.pdf | |
| Washington | Yes | Yes | Yes | Yes | https://www.wsp.wa.gov/fire-sprinklers/ | |
| Washington DC | Yes | Yes | Yes | Yes | | |
| West Virginia | Yes | Yes | Yes | Yes | https://firemarshal.wv.gov/Divisions/Fire%20Services/Pages/Supervision-of-Fire-Protection-Workers.aspx | |
| Wisconsin | Yes | Yes | Yes | Yes | https://dsps.wi.gov/Pages/Professions/AutomaticFireSprinkler/Contractor/Default.aspx | |
| Wyoming | No | No | No | No | | |