Get licensed. Stay licensed.
Every code, certification, license, and insurance requirement that governs the trades — in one place. The same requirement can matter to you two ways: as a credential for your career, and as something your company needs to operate. Filter by your trade, your level, and which lens you're looking through.Licensing by trade + state · expanding
Certifications that move you up
The cards, certs, and licenses that get you hired and take you from apprentice to journeyman to master — EPA 608, OSHA 10/30, NABCEP, and the licensing your trade requires.
Show career credentials →What it takes to operate legally
The licensing, insurance, and compliance you need to stand up and run a shop — contractor and business licenses, general liability, workers' comp, bonding, and the codes you're inspected against.
Show company requirements →See what's relevant to you. Add your trade, level, and the certs you already hold to your Trade Card — we'll surface the credentials and training that matter for where you are and where you're headed.
Build your Trade Card →NEC (NFPA 70)
NECThe foundational electrical safety code adopted by most US jurisdictions governing electrical wiring and equipment installation.
LEED
LEEDThe most widely used green building rating system, certifying the design, construction, and operation of high-performance buildings.
NABCEP Certification
NABCEPThe leading certification for solar PV, energy storage, and clean-energy installers.
NABCEP Board Certified PV Installation Professional (PVIP)
PVIPNABCEP Board Certified PV Installation Professional (PVIP), issued by NABCEP (energy).
NGBS Green Certification (ICC 700)
NGBSICC 700 is the National Green Building Standard for homes and residential buildings. Home Innovation Research Labs certifies projects to it at the Bronze, Silver, Gold or Emerald level.
Enterprise Green Communities Criteria
EGCGreen-building criteria for affordable housing from Enterprise Community Partners, covering energy, health and resilience, with Certification, Certification Plus and Certification Plus Zero Emissions tiers.