United States · Licensing exam

Journeyman plumbing exam: requirements and format by state

There's no national journeyman plumbing exam. Each state writes its own, and you can only sit it after years of supervised work: 8,000 hours in Texas and Washington, 4 years in Iowa and Virginia. Texas gives 100 written questions and a hands-on practical; Washington gives 100 code questions and two sizing drawings.

Journeyman plumbing license requirements in five places

WhereExperienceAlso needed
Texas8,000 hours as a registered apprenticeA 48-hour approved course, or a registered apprenticeship
Washington8,000 hours as a trainee, at least 4,000 commercial or industrialA current trainee certificate
Virginia4 years plus 240 hours of vocational training, or other mixes of years and hoursBoard approval before booking
Iowa4 years as an apprentice in a registered programAge 18
New York City5 years under a licensed master plumber, 1 in the cityA $50 registration; DOB lists no exam

California and North Carolina license plumbing differently: California's state license is the C-36 contractor license, and North Carolina has plumbing technician and contractor licenses.

What's on the journeyman plumbing exam?

WhereExamTo pass
Texas100 written questions in 120 minutes, then a 6-part practical in 240 minutes, closed book70%, on both parts
Washington100 code questions, then a waste and vent drawing and a water sizing drawing, 25 items each, 90 minutes per part, closed book70% on every part
Virginia80 items in 210 minutes, open book with the 2021 IPC60 correct
Iowa75 questions in 3 hours, open book with the 2024 UPC75%

Texas's practical is real shop work at the board's Austin and Waco sites; the Texas page lists what you build.

Journeyman or master?

In Virginia, Iowa and Texas a master license comes after time as a licensed journeyman, and the master exam is longer. In Texas, for example, a master can directly supervise apprentices on any job site.