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Plumber license requirements by state

The main plumber license in each state we cover, side by side. Every row links to a full state guide with official sources. Checked October 23, 2026.

State	License	Training / experience	Exam	Renewal cycle	CE to renew
Texas	Journeyman Plumber	8,000 hours	Varies, see page	Every year	6 hours per year
Florida	Certified Plumbing Contractor No state journeyman license	Varies, see page	Varies, see page	Every 2 years	Varies, see page
California	C-36 Plumbing Contractor (CSLB) No state journeyman license	Varies, see page	PSI, closed book	Every 2 years	None required
Virginia	Journeyman Plumber	Varies, see page	PSI, open book	Every 3 years	3 hours per 3-year renewal
Arizona	Plumbing contractor (ROC R-37, C-37 or CR-37) No state journeyman license	Varies, see page	Varies, see page	Every 2 years	None required
North Carolina	Plumbing Contractor No state journeyman license	Varies, see page	Varies, see page	Every year	None required
Georgia	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years	Varies, see page
Washington	Journey Level Plumber (PL01)	Varies, see page	Washington L&I Plumber Certification Program, closed book	Every 3 years	24 hours per 3-year renewal
New Jersey	Master Plumber No state journeyman license	Varies, see page	Varies, see page	Every 2 years	5 hours per 2-year (biennial) period
Illinois	Illinois Plumber	Varies, see page	Varies, see page	Every year	4 hours per year
New York	Plumber license (local) No state journeyman license	Varies, see page	Set locally, closed book	Varies, see page	Varies, see page
Pennsylvania	Plumber license (local) No state journeyman license	Varies, see page	Varies, see page	Varies, see page	Varies, see page
Ohio	Plumbing contractor (OCILB) No state journeyman license	Varies, see page	Varies, see page	Every year (or every 3 years if you choose triennial)	10 hours per year
Michigan	Journey Plumber	Varies, see page	Varies, see page	Every year	Varies, see page
Massachusetts	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years	12 hours per 2-year license cycle
Tennessee	Limited Licensed Plumber (LLP) No state journeyman license	Varies, see page	Varies, see page	Every 2 years	Varies, see page
Indiana	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years	Varies, see page
Missouri	Plumber license (local) No state journeyman license	Varies, see page	Varies, see page	Varies, see page	Varies, see page
Maryland	Journey Plumber/Gas Fitter	Varies, see page	PSI, open book	Every 2 years	Varies, see page
Colorado	Journeyworker Plumber	Varies, see page	Varies, see page	Every 2 years through Feb 2027 cycle; then 3 years starting March 1, 2027	8 hours per year
Wisconsin	Journeyman Plumber	Varies, see page	DSPS / Pearson, open book	Every 4 years	24 hours per 4-year renewal
Minnesota	Journeyworker Plumber	Varies, see page	Varies, see page	Every 2 years	16 hours per 2-year license period
South Carolina	Residential Plumber (RBP) No state journeyman license	Varies, see page	Varies, see page	Biennial (Commission schedule)	Varies, see page
Alabama	Journeyman Plumber	Varies, see page	Varies, see page	Every year	4 hours per year
Louisiana	Journeyman Plumber	Varies, see page	Varies, see page	Every year	3.5 hours per year
Kentucky	Journeyman Plumber	Varies, see page	Varies, see page	Every year (expires last day of birth month)	6 hours per year
Oregon	Journeyman Plumber	Varies, see page	Varies, see page	Every 3 years	4 hours per 3-year renewal
Oklahoma	Journeyman Plumber	Varies, see page	Varies, see page	Every year	6 hours per 3 years
Connecticut	P-2 Unlimited Plumbing & Piping Journeyperson	Varies, see page	Varies, see page	Every year	Varies, see page
Utah	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years	12 hours per 2-year renewal
Nevada	Plumber card (local) No state journeyman license	Varies, see page	Set locally, open book	Varies, see page	Varies, see page
Iowa	Journeyperson Plumber	Varies, see page	Varies, see page	Every 3 years (all PMSB licenses share the same period)	8 hours per 3-year license period
Arkansas	Journeyman Plumber	Varies, see page	Varies, see page	Every year	Varies, see page
Kansas	Plumber certificate (local) No state journeyman license	Varies, see page	Varies, see page	Varies, see page	12 hours per biennial (or 6 annual) — statutory minimum where local licensure is required
Mississippi	Plumbing contractor (MSBOC commercial specialty) No state journeyman license	Varies, see page	PSI, open book	Every year	Varies, see page
New Mexico	Journeyman Plumber (JP)	Varies, see page	Varies, see page	Every 3 years (expires last day of issuance month)	16 hours per 3-year renewal period
Idaho	Journeyman Plumber	Varies, see page	Varies, see page	Every 3 years	0 hours per n/a
Nebraska	Plumber license (local) No state journeyman license	Varies, see page	Varies, see page	Varies, see page	Varies, see page
West Virginia	Journeyman Plumber	Varies, see page	Varies, see page	Listed on your certification card	Varies, see page
Hawaii	Journey Worker Plumber	Varies, see page	Varies, see page	Every 3 years	Varies, see page
New Hampshire	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years	6 hours per 2-year licensing cycle (per plumbing endorsement)
Maine	Journeyman Plumber	Varies, see page	Varies, see page	Every 2 years (based on first licensure date)	Varies, see page
Montana	Journeyman Plumber	Varies, see page	Varies, see page	Annual (FY26 window opens July 2, due September 1, 2026 per Board home page)	4 hours per year (renewal cycle)
Rhode Island	Journeyperson Plumber	Varies, see page	Varies, see page	Every 24 months	7 hours per 2-year license cycle
Delaware	Master Plumber No state journeyman license	Varies, see page	Varies, see page	Every 2 years	5 hours per biennial renewal period (through Oct 31 even years)
Vermont	Journeyman Plumber	Varies, see page	Prov, open book	Every 2 years	8 hours per 24-month period before renewal
North Dakota	Journeyman Plumber	Varies, see page	Varies, see page	Biennial (Board posts annual renewal forms; 2026 journeyman renewal form on Board site)	2 hours per two-year period (Board states 2 to 4 credit hours)
South Dakota	Plumber	Varies, see page	Varies, see page	Annual	4 hours per previous calendar year (annual renewal)
Alaska	Plumber Journeyman Certificate of Fitness	Varies, see page	Varies, see page	Every 2 years	16 hours per preceding 24-month period
Wyoming	Plumber license (local) No state journeyman license	Varies, see page	Varies, see page	Varies, see page	Varies, see page

"Varies, see page" means the rule isn't a single number (for example, it's set by counties or depends on the license level). The state page has the details and sources.

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