50-State Contractor Resource Center

U.S. Contractor Resources

Select a state to find building-code adoption information, official state resources, licensing and permit starting points, workplace safety, business information and energy-code references.

50States

Verify locally before relying on a requirement.

Building codes, permits and contractor licensing can be controlled at the state, county or city level. These pages are a starting point for research, not a substitute for the authority having jurisdiction (AHJ).

Find Your State

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Interactive U.S. Map

Contractor resources by state

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Hover over a state to identify it, then click to open its contractor resources.

All States

Browse alphabetically

ALAlabama→ AKAlaska→ AZArizona→ ARArkansas→ CACalifornia→ COColorado→ CTConnecticut→ DEDelaware→ FLFlorida→ GAGeorgia→ HIHawaii→ IDIdaho→ ILIllinois→ INIndiana→ IAIowa→ KSKansas→ KYKentucky→ LALouisiana→ MEMaine→ MDMaryland→ MAMassachusetts→ MIMichigan→ MNMinnesota→ MSMississippi→ MOMissouri→ MTMontana→ NENebraska→ NVNevada→ NHNew Hampshire→ NJNew Jersey→ NMNew Mexico→ NYNew York→ NCNorth Carolina→ NDNorth Dakota→ OHOhio→ OKOklahoma→ OROregon→ PAPennsylvania→ RIRhode Island→ SCSouth Carolina→ SDSouth Dakota→ TNTennessee→ TXTexas→ UTUtah→ VTVermont→ VAVirginia→ WAWashington→ WVWest Virginia→ WIWisconsin→ WYWyoming→

What You’ll Find

One place to start the contractor research

Building CodesState and local I-Code adoption references.

LicensingOfficial state-government starting points for contractor and trade licensing.

PermitsGuidance to verify permits with the correct local AHJ.

Electrical / Plumbing / HVACCode-adoption references for major trades.

SafetyOSHA and workplace-safety resources.

Business & TaxOfficial state and federal business resources.