Where a Colorado journeyman plumber license transfers

Colorado issues a statewide Journeyworker Plumber license (its name for the journeyman level) through the State Plumbing Board in DORA's Division of Professions and Occupations; the Board also licenses Residential Plumbers (two years / 3,400 hours) and Master Plumbers, registers apprentices, and registers Plumbing Contractors, which must hold or employ a licensed master plumber. By examination a journeyworker needs four years (6,800 hours) of documented practical experience verified on Affidavit of Experience forms by plumbing contractors or employers, a $120 application fee, and a passing score of 70% on the PSI-administered Colorado journeyworker exam (100 multiple-choice questions, 240 minutes) based on the International Plumbing Code and International Residential Code (2021 editions until November 1, 2026, then the 2024 editions the Board adopted in 3 CCR 720-1 effective August 14, 2026). Out-of-state licensees who meet Board Rule 1.4(B)(1)(a) may instead be licensed by endorsement without the Colorado exam; the Board publishes no reciprocal agreements with any state. The current license period ends on the last day of February 2027; from the cycle beginning March 1, 2027, Colorado issues and renews plumbing licenses for three years. Renewal requires eight hours of continuing education per license year (waived until after the first renewal for new exam licensees).