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 →OSHA Construction Standards
29 CFR 1926Federal workplace safety standards specifically for the construction industry covering fall protection, scaffolding, excavation, and more.
LEED
LEEDThe most widely used green building rating system, certifying the design, construction, and operation of high-performance buildings.
International Residential Code
IRCThe International Residential Code (IRC) is a model code published by the International Code Council (ICC) that establishes minimum requirements for one- and two-family dwellings and townhouses up to three stories. It is a comprehensive, stand-alone code combining building, plumbing, mechanical, fuel gas, energy conservation, and electrical provisions for residential construction.
International Plumbing Code
IPCThe International Plumbing Code (IPC) is a model code published by the International Code Council (ICC) that establishes minimum requirements for plumbing systems using prescriptive and performance-related provisions. It sets standards for the design, installation, and inspection of plumbing systems to protect public health, sanitation, and safety.
Uniform Plumbing Code
UPCThe Uniform Plumbing Code (UPC) is a model plumbing code developed and published by IAPMO that sets minimum requirements for the design, installation, and inspection of plumbing systems to protect public health and safety. It is developed through an ANSI-accredited consensus process and is the only U.S. plumbing code designated as an American National Standard.
OSHA 10/30-Hour
OSHA 10/30The OSHA Outreach Training Program offers voluntary 10-hour and 30-hour courses that teach workers to recognize, avoid, abate, and prevent common job-related safety and health hazards. The 10-hour course targets entry-level workers, while the 30-hour course is intended for supervisors and workers with some safety responsibility.
PHCC
PHCCThe Plumbing-Heating-Cooling Contractors—National Association (PHCC) is a U.S. trade association founded in 1883 that represents plumbing and HVACR contractors through advocacy, education, and training. It serves approximately 3,300 member businesses and 65,000 technicians via a network of affiliated state and local chapters.
MCAA
MCAAThe Mechanical Contractors Association of America (MCAA) is a national trade association representing more than 3,000 firms in the heating, air conditioning, refrigeration, plumbing, piping, mechanical systems, and HVACR service industries. It provides its member contractors with education, training, labor-management resources, and industry tools.