Plumbing apprenticeships in Washington, DC run through registered apprenticeship in a State Apprenticeship Agency jurisdiction: DLCP, the District's licensing agency, points trade apprentices to the DC Department of Employment Services (DOES) apprenticeship office, and DC licenses plumbers at apprentice, journeyman and master levels through the DLCP Board of Industrial Trades.
The union route the research confirms runs through UA Local 5, the plumbers, and finishing a nationally certified apprenticeship waives the DC journeyman plumber exam.
Here is who offers programs, what registration takes, and how to apply.
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At a glance
DC is a State Apprenticeship Agency (SAA) jurisdiction recognized by the U.S. Department of Labor, and DLCP points trade apprentices to the DC Department of Employment Services (DOES) apprenticeship office.
Two layers: the DLCP Board of Industrial Trades licenses plumbers at apprentice, journeyman and master levels, and apprenticeship program registration runs through the DOES apprenticeship office, which DLCP points trade apprentices to.
Whether every working apprentice must hold the Board's apprentice license first was not confirmed in our research β ask DLCP.
UA Local 5 (plumbers, Lanham, MD) and UA Local 602 (steamfitters, Capitol Heights, MD) serve DC; SMART Sheet Metal Local 100 (Suitland, MD) β the sheet-metal trade, not plumbing β also covers Washington, DC and vicinity.
Not established in our research which DC-area merit-shop associations or employers sponsor registered plumbing apprenticeships β ask DOES and the associations' local chapters.
Journeyman exam eligibility takes 4 years / 8,000 work hours and master takes 8 years / 16,000 hours; proof of completing a nationally certified apprenticeship waives the journeyman exam.
Ask the DOES apprenticeship office β the office DLCP points trade apprentices to β and the plumbers' local confirmed above, UA Local 5; confirm license steps and fees with DLCP's Board of Industrial Trades.
The entry rung of the DLCP Board of Industrial Trades ladder: DC licenses plumbing, gasfitting or the combined plumbing/gasfitting trade at apprentice, journeyman and master levels, and licenses expire March 31 of even-numbered years whenever issued.
Exam eligibility takes 4 years / 8,000 work hours β but proof of completing a nationally certified apprenticeship waives the journeyman exam.
The senior level of the Board's worker ladder: exam eligibility takes 8 years / 16,000 hours.
Registered apprenticeship in the District is state-administered.
DC is a State Apprenticeship Agency (SAA) jurisdiction recognized by the U.S. Department of Labor, and DLCP's own plumbing and gasfitting licensing sheet points trade apprentices to the DC Department of Employment Services (DOES) apprenticeship office.
Programs register with the apprenticeship agency, which acts for DOL, and finishing a registered program earns a completion certificate issued by the registration agency.
Federally, an apprenticeable occupation must require at least 2,000 hours of on-the-job learning, and a program's term can be time-based, competency-based or a hybrid of both.
Which sponsors maintain registered plumbing programs in the District is a question to take to DOES and to the plumbers' local below β our research confirmed those doors, not a full sponsor roster.
Two bodies are involved in the DC path.
On the license side, DC licenses plumbers and gasfitters β separately or as a combined plumbing/gasfitting license β at apprentice, journeyman and master levels through the DLCP Board of Industrial Trades, and licenses expire March 31 of even-numbered years whenever issued.
On the program side, apprenticeship registration runs through the DOES apprenticeship office, the body DLCP points trade apprentices to.
The apprenticeship payoff: the journeyman exam is waived with proof of completing a nationally certified apprenticeship.
Without it, journeyman exam eligibility takes 4 years / 8,000 work hours, and the master level takes 8 years / 16,000 hours.
What our research did not pin down for plumbing is whether every working apprentice must hold the Board's apprentice license before starting work β the license ladder starts at apprentice, so confirm with DLCP before you take a job.
A registered apprenticeship's completion certificate is not itself a license; the journeyman license is a separate Board step.
βRegardless of when they are obtained, licenses expire March 31 on even-numbered years.β
The union locals our research confirmed serving the District are UA Local 5 β the plumbers, based in Lanham, Maryland β and UA Local 602, the steamfitters, the other UA local the research confirms for DC, based in Capitol Heights, Maryland.
The UA says its apprenticeships are registered with the Department of Labor, typically last five years, and cover plumbing, pipefitting, HVACR, welding and fire protection.
SMART Sheet Metal Local 100 also covers Washington, DC and vicinity from Suitland, Maryland β the sheet-metal local, a separate trade from plumbing, if you are weighing the wider building-trades options.
DLCP's refrigeration and air-conditioning materials also list UA Local 486 of Baltimore as an HVAC training resource.
Our research did not confirm JATC names or application windows for any of these locals, and all three DC-area locals are based in Maryland β ask each local where its apprentices train and when it takes applications.
βLocal 100-SM Washington, DC & Vicinityβ
This is the gap in the DC research: our reading confirmed the national associations' apprenticeship content but no specific DC-area registered sponsor on the non-union side of the plumbing trade.
PHCC β the Plumbing-Heating-Cooling Contractors Association β offers apprenticeship content through an online learning academy, but which chapters run registered plumbing apprenticeships is a chapter-level question our research did not answer for the DC area.
ABC (Associated Builders and Contractors) describes itself as founded on the merit shop philosophy.
If a DC contractor tells you it runs a plumbing apprenticeship, ask who registered the program and confirm that registration with DOES before you commit.
Our research did not confirm a Washington, DC community college or trade school running the classroom side of a plumbing apprenticeship, so ask each program where its apprentices take class and how the hours are documented.
Federally, the Department of Labor recommends β but does not require β a minimum of 144 hours of related technical instruction per year of apprenticeship.
The license exams themselves are open book: DC plumbing and gasfitting exams reference the 2012 International Plumbing Code and the 2012 International Fuel Gas Code.
Start with the two doors the research confirms.
For the program, DLCP's plumbing and gasfitting sheet points trade apprentices to the DOES apprenticeship office, and the plumbers' local confirmed above, UA Local 5, is where to ask about application windows.
For the license, the Board of Industrial Trades' ladder starts at apprentice; whether every working plumbing apprentice must hold that license first was not confirmed in our research β ask DLCP before you take a job.
Federal rules set the floor: a registered apprentice must be at least 16 unless a higher minimum age is set by law, there is no federal maximum age, and sponsors may set other qualifications, so read each program's standards.
Pay rises as you train β registered programs must follow a progressively increasing wage schedule tied to the skill acquired, with the steps set by each program's standards, not federal rule.
On cost, a DC bulletin on Maryland reciprocity cited license fees of $175 for Journeymen Plumber and/or Gasfitter and $185 for Master Plumber and/or Gasfitter; because licenses renew March 31 of even-numbered years, confirm the current fee with DLCP.
And the destination: proof of completing a nationally certified apprenticeship waives the journeyman exam.
This page summarizes the District of Columbia board pages, statutes, rules and other sources listed below, as read for this state-by-state plumbing apprenticeships series, current as of September 2026.
It is not a substitute for the instructions the DC Department of Employment Services (DOES) apprenticeship office publishes.
For the rest of the picture in District of Columbia, see plumbing licensing in District of Columbia and HVAC apprenticeships in District of Columbia.
DC licenses plumbers and gasfitters at apprentice, journeyman and master levels through the DLCP Board of Industrial Trades, so the license ladder starts at apprentice.
Apprenticeship program registration runs separately through the DOES apprenticeship office, which DLCP points trade apprentices to.
Our research did not confirm whether every working plumbing apprentice must hold the Board's apprentice license before starting work, so confirm that with DLCP before you take a job.
Licenses expire March 31 of even-numbered years.
The DC rule that matters is the exam waiver: proof of completing a nationally certified apprenticeship waives the journeyman exam.
The UA says its apprenticeships typically last five years, and federally a program's term can be time-based, competency-based or a hybrid of both β so ask each program for its own term before you sign.
Master-level exam eligibility, by contrast, takes 8 years / 16,000 hours.
Yes.
The DC journeyman exam is waived with proof of completing a nationally certified apprenticeship.
Without that proof, journeyman exam eligibility takes 4 years / 8,000 work hours, and the exams are open book, referencing the 2012 International Plumbing Code and the 2012 International Fuel Gas Code.
Ask DLCP what proof of completion it accepts when you file.
UA Local 5 is the plumbers' local our research confirmed serving DC; it is based in Lanham, Maryland.
UA Local 602, the steamfitters, is the other confirmed UA local, based in Capitol Heights, Maryland, and SMART Sheet Metal Local 100 β the sheet-metal trade, not plumbing β covers Washington, DC and vicinity from Suitland, Maryland.
Ask each local directly about its apprenticeship and application schedule.
Our research found no DC plumbing apprenticeship program fees.
On the license side, a DC bulletin on Maryland reciprocity cited $175 for Journeymen Plumber and/or Gasfitter and $185 for Master Plumber and/or Gasfitter; because licenses renew March 31 of even-numbered years, confirm the current fee with DLCP before you file.
Registered programs must pay apprentices a progressively increasing wage schedule tied to the skill acquired, so you earn while you train.
Sources
Sourced from the documents listed above.
Verified September 2026.
This is career information, not legal advice.
Confirm current rules with the DC Department of Employment Services (DOES) apprenticeship office.