Find the union plumbers, pipefitters, steamfitters, or sprinkler fitters local that covers your area — with links to each local's website and JATC training center, plus application notes where the local publishes them.
PipePrep AI is an independent directory and study tool — not affiliated with, endorsed by, or connected to the United Association (UA), any UA local, any JATC or training fund, or GAN Human Resources. Application windows, fees, and requirements change constantly; always verify details on the local's own website before you act on anything here.
A UA local is a regional union of plumbers, pipefitters, steamfitters, sprinkler fitters, and HVAC/R service techs chartered by the United Association. Each local covers a geographic area, and its JATC (Joint Apprenticeship & Training Committee) — sometimes a separately branded training center — runs apprentice recruiting, the aptitude test, and the five-year training program.
How to pick yours: find the local whose jurisdiction covers where you live, then check which trades it represents — some metro areas have separate locals for plumbers versus pipefitters versus sprinkler fitters, so make sure you apply to the local that trains the trade you want. If more than one fits, nothing stops you from applying to several.
Application windows vary — a lot. Some locals take applications year-round online; others open a window once a year (or less) for days or weeks, in person only. Missing a window can mean waiting a full year, so find your local's dates first and set reminders. Most locals test applicants with the GAN aptitude battery and rank them by score — the higher you score, the sooner you get called.
Phoenix, AZ
Applications: Rolling online application through the Arizona Pipe Trades site (azpipetrades.com).
San Francisco, CA
Applications: Application windows are infrequent — the site states the next opportunity to apply for the apprenticeship is in 2027.
Los Angeles, CA
Applications: Applications accepted Monday-Thursday mornings by appointment only (no walk-ins); a placement test is given every other Thursday and may be retaken only once every two years.
San Diego, CA
Gardena (Los Angeles), CA
Concord (Bay Area), CA
Applications: The site posts specific application-opening dates (most recently May 2026) — check the apprenticeship page on ua342.org for the current cycle.
San Jose, CA
Applications: Applications go through the Pipe Trades Training Center (pttc.edu), which runs an online apply flow.
Sacramento, CA
Denver, CO
Washington, DC
Applications: The JATC accepts a limited number of applicants each year via the application process on local5training.org.
Miami Lakes, FL
Applications: The site posts an annual application season (recently September through April); apply online or in person at the Miami Lakes hall.
Atlanta, GA
Applications: The MTI training trust takes online applications during a stated annual window (recent cycle: November through April) with an application fee and an ACT WorkKeys assessment.
Savannah, GA
Chicago, IL
Applications: Apprenticeship applications are accepted online only at apply.jac130.org; the portal typically opens in November ($50 non-refundable fee).
Chicago, IL
Applications: Applicants register online for scheduled Application Days at the Mokena training center ($20 application fee); the exam date is then sent by certified mail.
Indianapolis, IN
Louisville, KY
Applications: Apprenticeship applications are available annually September 1 through December 31.
Metairie (New Orleans), LA
Applications: A preliminary application is downloaded from the site and hand-delivered or mailed to the New Orleans Pipe Trades office in Metairie.
Boston, MA
Applications: Applications are accepted in person at the Dorchester training center during an annual January window ($50 non-refundable fee); aptitude tests and interviews follow in spring.
Baltimore, MD
Applications: Applications are taken online year-round at getpiping.com ($25 non-refundable fee); assessment tests go out in January, interviews follow, and classes begin each September.
Capitol Heights (DC metro), MD
Columbia, MDNationwide jurisdiction
Applications: Nationwide road local — the national JATC accepts apprenticeship applications throughout the United States on an ongoing basis via training669.org.
Madison Heights (Detroit), MI
Applications: Online application with uploaded HS diploma/GED; the training center runs capped application pools rather than year-round intake — check plumbers98tc.org for the current window.
Ann Arbor, MI
Applications: The application form is only available during the recruitment window, which typically runs January 1-31 each year.
Farmington Hills (Detroit), MI
Applications: Seasonal window — the training center typically begins accepting applications in December; check pipefitters636tc.org for current status.
Southfield (Detroit), MI
St. Paul, MN
St. Paul, MN
Kansas City, MO
Applications: Applications can be downloaded online or picked up in person Monday-Friday 8am-4pm at the Kansas City training center.
Newark, NJ
Albuquerque, NM
Applications: The site states the apprenticeship is not always accepting new applications — call the apprenticeship line during the last week of each month to check availability.
Las Vegas, NV
Applications: The JATC runs an online application portal at local525jatc.org.
Long Island City (NYC), NY
West Seneca (Buffalo), NY
Applications: Applications are taken in person on a rolling monthly schedule by trade — Plumber first Tuesday, Steamfitter second Tuesday, HVAC third Tuesday, 9am-5pm.
Long Island City (NYC), NY
Cleveland, OH
Applications: Applications accepted in person at 980 Keynote Circle every Monday 9am-3pm, plus the third Monday of each month 10am-6pm.
Valley View (Cleveland), OH
Applications: Applications are handed out in person at the training center office on Mondays 8:30-11:30am and must be returned within two weeks; $20 application fee plus $40 assessment-test fee.
Columbus, OH
Applications: Applications must be picked up in person on the first Tuesday of each month, 10am-5pm (photo ID required), and returned within two weeks with a $60 fee.
Tualatin (Portland), OR
Applications: Applications run in cycles through the local's training college (290tech.edu) and are closed between cycles — check the portal for current status.
Philadelphia, PA
Applications: Apprenticeship applications are taken through the local's online portal (portal.unionlogic.net/Apply420).
Harmony (Pittsburgh), PA
Applications: Apprentice applications are taken during an annual window at the Steamfitters Technology Center in Harmony, PA ($30 application fee).
Philadelphia, PA
Charleston (both Carolinas), SC
Houston, TX
Applications: Apprenticeship candidates are directed to contact the regional recruiter for their area, listed on the local's site.
Dallas, TX
Applications: Online application form available year-round on the local's site for both new-to-trade and experienced workers.
San Antonio, TX
Applications: Applications must be submitted in person at the San Antonio hall (weekday morning/afternoon hours) with all required documents, including Texas plumbing-apprentice registration.
Deer Park (Houston), TX
Applications: Applications are taken in person; applicants must pass an entrance math exam (72%+) to qualify for a JATC interview. The five-year program is tuition-free.
Richmond, VA
Applications: Online application available year-round on the local's site.
Renton (Seattle), WA
Kaukauna (NE Wisconsin), WI
Applications: Apprenticeship candidates register through the UA Career Portal at pipetradecareers.com.
Most UA locals rank applicants by aptitude-test score and fill seats from the top down. Start with a free practice test for your trade — plumber, pipefitter, steamfitter, or sprinkler fitter — or read the GAN aptitude test study guide.
PipePrep AI is an independent directory and study tool — not affiliated with, endorsed by, or connected to the United Association (UA), any UA local, any JATC or training fund, or GAN Human Resources. Application windows, fees, and requirements change constantly; always verify details on the local's own website before you act on anything here.