How to get a plumbing contractor license in District of Columbia
District of Columbia plumbing contractor licensing covers hours, prerequisites, exam path, fees, and renewal. Confirm current rules on the board source before you apply.
Verified on: 2026-09-14 · Board source
From the board
- OCCUPATIONAL AND PROFESSIONAL LICENSING BOARD OF INDUSTRIAL TRADES Plumbing/Gasfitting – Application Instructions Licenses are offered for plumbing, gasfitting and a combination of both plumbing/gasfitting.
- Regardless of when they are obtained, licenses expire March 31 on even-numbered years.
- License Experience Documents Apprentice No experience required Employment Verification or School Enrollment Journeyman Exam 4 years/8,000 work hours Tax Records and Employment Verification Letter Wa
- Board page: [PDF] Plumbing/Gasfitting - | dlcp - DC.gov
Requirements overview
- District of Columbia sets experience, education, and exam rules for plumbing contractor applicants
- Documented OJT or apprenticeship hours are common for journeyman / technician paths
- Master and contractor tracks usually add experience, exams, and firm paperwork
- Confirm current hour totals, affidavits, and fees on the state board before you apply
Exam
- See the District of Columbia plumbing exam guide for vendor, scheduling, and prep
- LicenseFlo helps with paperwork and reminders — we do not sit the exam
Renewals
- Most credentials renew on a fixed cycle with mandatory CE or training
- Roster watch → intake → assemble → sign → submit
Related: Exam · Renewal and CE
Have LicenseFlo do it
From $79 per event. Text once; we collect photos, assemble the packet, and send a one-tap signature.