Pipefitter licensing in Colorado

Colorado has no state fitter license — the statute book licenses only electricians and plumbers — so nothing transfers at state level and the question moves to the CITY. Denver licenses the trade by name: the STEAMFITTER JOURNEYMAN certificate (4 years / 7,000 hours, ICC F31 exam), with Steam and Hot Water Supervisor tiers above it.

Whether Denver credits another city's ICC-based card is the department's call, not a published rule — ask before assuming.

City-dependent and not established — Denver's rules on working while an application or exam pends were not read. Do not start on silence inside a licensing city.

DENVER: the Steamfitter Journeyman runs on 4 years / 7,000 documented hours and the ICC F31 examination; supervisor tiers stack more years (Steam and Hot Water Supervisor at 8). Do not confuse the neighbors in Denver's catalog: the Boilermaker Journeyman is a different trade's card, and the Refrigeration Operator / Stationary Engineer certificates are OPERATOR credentials that never authorize fitting work.

Outside Denver, each building department runs its own program.

City-level hour-banking toward the local journeyman exams (Denver's 7,000-hour standard); registered apprenticeship runs in parallel. No state credential exists at any tier.

THE WHOLE ANSWER LIVES HERE. Denver is mapped — steamfitter journeyman plus supervisor tiers. Colorado Springs, Aurora and the rest of the Front Range run their own regional building-department regimes, unmapped for fitter classes. Every Colorado placement starts with one question: which building department?

City contractor licenses ride above the worker cards in the same municipal regimes, anchored on the supervisor certificates. Verify the employer with the city holding the permit. A plumbing-scoped tie-in needs the STATE plumber card regardless of city.