PLUMBING x RHODE ISLAND

Plumbing contractor requirements in Rhode Island.

R.I. Gen. Laws § 5-20-8 bars anyone from engaging in the business of plumbing, employing journeypersons or apprentices, contracting for plumbing installation or repair, or advertising plumbing services without a DLT master plumber license, and the license number must appear on contracts, bids, and permits. A corporation or firm may only do so if a licensed master is an officer or principal continuously supervising the work, or if it holds a DLT plumbing contractor license with a contractor master or an employed master plumber (§ 5-20-12). A journeyperson applicant must have been a registered apprentice for at least four years with 8,000 hours of on-the-job training in a five-year period, including 576 hours of related instruction (§ 5-20-17); a master applicant must have held a journeyperson license for at least one year while employed by a master (§ 5-20-16).

Applications carry a $75 nonrefundable fee (§§ 5-20-16, 5-20-17). Licenses expire on the licensee's birthday in odd or even years; master renewals are $240 and journeyperson renewals $72 for two years, plus a $12 per month delinquency assessment for late renewal (§ 5-20-23). Masters and journeypersons must complete board-set continuing education of up to 15 hours before renewal (§ 5-20-23(f)). DLT-licensed plumbing businesses are exempt from CRLB registration except for its insurance requirement (§ 5-65-2(a)(10)).

STATE LICENSE
RequiredRhode Island Department of Labor and Trai…
STATUTE
R.I. Gen. Laws §§ 5-20-8, 5-20-12, 5-20-16, 5-20-17, 5-20-23
RENEWAL
Every 2 years on the licensee's birthdayBoard-set, up to 15 hours per renewal (R.I. Gen. Laws § 5-20-23(f)); exempt when years licensed plus age total 80
VERIFIED
October 2026Official sources
FILE · PLUMBING x RHODE ISLAND
Compliance Dossier
Public
File
October 2026
STATE AUTHORITYRhode Island Department of Labor and Training — Division of Professional Regulation
STATUTE / CODER.I. Gen. Laws §§ 5-20-8, 5-20-12, 5-20-16, 5-20-17, 5-20-23
SCOPEStatewide · Rhode Island
RENEWALEvery 2 years on the licensee's birthday
CONTINUING ED.Board-set, up to 15 hours per renewal (R.I. Gen. Laws § 5-20-23(f)); exempt when years licensed plus age total 80
LOCAL OFFICES1 counties on file
FILE PLUMBINGSCOPE STATEWIDE · RHODE ISLANDTYPE VERIFIED RULE FILE
VERIFIED October 2026STATUS PUBLIC REFERENCE
What this file settlesThe Rhode Island rules for plumbing contractors, verified against official sources.
LICENSE TRUTH
Plumbing in Rhode Island requires a DLT master plumber license (or a plumbing contractor license backed by a master) to contract, and a journeyperson license — 8,000 apprentice hours and an exam — to do the work.
STATE ↔ LOCAL
Licensing is state-only through DLT; plumbing permits and inspections are issued by each city or town (there is no county layer in Rhode Island), and the master's license number must be affixed to the permit (§ 5-20-8).
EVERY CLAIM SOURCED
Each requirement below carries its citation and official source. Facts we could not confirm are listed as pending — never asserted.
§ 01 · Permit Stack

How plumbing work is governed in Rhode Island.

The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.

STATE — THE LICENSE
DLT Board of Examiners of Plumbers (R.I. Gen. Laws 5-20)
MASTER PLUMBERJOURNEYPERSON PLUMBERREGISTERED APPRENTICE
STATE — ENTITY & CE
R.I. Gen. Laws §§ 5-20-12, 5-20-23(f)
PLUMBING CONTRACTOR LICENSEUP TO 15 HRS CE
LOCAL — CITY OR TOWN
Municipal plumbing inspector
PLUMBING PERMITLICENSE # ON PERMITINSPECTIONS

Read it bottom-up.

Licensing is state-only through DLT; plumbing permits and inspections are issued by each city or town (there is no county layer in Rhode Island), and the master's license number must be affixed to the permit (§ 5-20-8).

The local offices section below names the exact permit desk for every Rhode Island county on file.

Source · Rhode Island Department of Labor and Training — Division of Professional RegulationLast verified · October 2026
§ 02 · Specs Ledger

Every requirement, with a number on it.

Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.

RequirementIssued byCostTimeCitationStatus
Master Plumber LicenseRequired to contract, employ plumbers, or advertise plumbing
DLT Professional Regulation
$75 application + license fee
Renew $240 every 2 years
R.I. Gen. Laws §§ 5-20-8, 5-20-16(a), 5-20-23(b)
REQUIRED
Plumbing Contractor License (entities)For corporations or firms; requires a contractor master or employed master continuously supervising
DLT Professional Regulation
Equal to master fee
With master
R.I. Gen. Laws §§ 5-20-12, 5-20-12.1
CONDITIONAL
Journeyperson Plumber License4 years' apprentice registration; 8,000 OJT hours in 5 years incl. 576 hours instruction; exam
DLT Professional Regulation
$75 application
Renew $72 every 2 years
R.I. Gen. Laws §§ 5-20-17, 5-20-23(c)
REQUIRED
Continuing EducationBoard-set, not to exceed 15 hours; exempt if years licensed plus age total 80
Board-approved provider
Provider price
Before each renewal
R.I. Gen. Laws § 5-20-23(f)–(g)
REQUIRED
Liability Insurance (CRLB § 5-65-7 level)DLT licensees exempt from CRLB registration except insurance
Carrier
Market premium
Continuous
R.I. Gen. Laws §§ 5-65-2(a)(10), 5-65-7
REQUIRED
Plumbing PermitMaster's license number on the permit
City / town
Set locally
Per job
R.I. Gen. Laws § 5-20-8
REQUIRED
§ 03 · Year-One Cost

What it costs to start plumbing in Rhode Island.

Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.

Year-one ledger
Rhode Island · Plumbing
Master or journeyperson applicationNonrefundable$75
Master plumber biennial renewalPlus back fees and $12/month if late$240
Journeyperson biennial renewalPlus back fees and $12/month if late$72
Continuing educationUp to 15 hours per renewalProvider price
Year-one floor$75 application + $240 (master) / $72 (journeyperson) biennial
Excludes tools, vehicle purchase, payroll, and marketing.
NOTE
Forfeiture after two years

A plumbing license not renewed within two years of expiration is forfeited and requires a new examination (§ 5-20-23(e)).

NOTE
No CRLB registration

DLT-licensed plumbing businesses working within their license are exempt from CRLB registration except for the insurance requirement (§ 5-65-2(a)(10)).

NOTE
Secretary of State check

A plumbing entity cannot incorporate or register with the Secretary of State until DLT confirms its required licenses are issued and in good standing (§ 5-20-12(f)).

§ 04 · Path to First Job

From day zero to first inspection.

A practical sequence for a new plumbing contractor in Rhode Island. Actual agency processing times are noted in the ledger above.

1
STEP 1
Register as an apprentice plumber
DLT
2
STEP 2
8,000 OJT hours + 576 hours instruction
Registered apprenticeship (4+ years)
3
STEP 3
Journeyperson exam
DLT — $75 application
4
STEP 4
One year licensed under a master
Employer affidavit
5
STEP 5
Master exam + license
DLT — $75 application
6
STEP 6
Renew every 2 years with CE
DLT — $240 master / $72 journeyperson
§ 05 · Compliance Checklist

Check them off.

Each item names the issuing authority, cycle, and citation.

01
Hold a master to contract
Only a licensed master — or an entity with a licensed master supervising — may contract, employ plumbers, or advertise plumbing.
STATEESSENTIALR.I. Gen. Laws §§ 5-20-8, 5-20-12
DLTIssuing authority
02
Print your license number
Affix the plumber's license number to every contract, bid, and permit.
STATEDISCLOSURER.I. Gen. Laws § 5-20-8
YouIssuing authority
03
Replace a departing master fast
Notify within 14 days when the supervising master leaves and name the replacement within 45 days.
ENTITYDEADLINER.I. Gen. Laws § 5-20-12(e)
EntityIssuing authority
04
Finish CE before renewal
Masters and journeypersons complete board-set continuing education of up to 15 hours before renewal.
CERENEWALR.I. Gen. Laws § 5-20-23(f)
YouIssuing authority
§ 06 · Enforcement

What the law does about unlicensed plumbing work.

Statutory consequences with their citations — not estimates, not “commonly cited” guesses.

§
R.I. Gen. Laws § 5-20-33Statute

Unlicensed plumbing

Any person, firm, or corporation, licensed or not, violating the plumbing chapter; each individual acting in violation is a separate offense.

Consequence$1,500 first offense; not less than $2,000 for subsequent violations
§
R.I. Gen. Laws § 5-20-12(g)Statute

Entity violations

Willfully violating the corporate supervision rules is grounds for license revocation.

ConsequenceLicense revocation
§
R.I. Gen. Laws § 28-22-2Statute

Unpaid fines

Fines unpaid within 30 days of notice lead to license revocation, or injunction proceedings for unlicensed violators.

ConsequenceRevocation or superior court injunction
§ 07 · Local Offices

Where the permit is filed, county by county.

Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.

§ 08 · Rhode Island FAQ

Questions plumbing contractors ask about Rhode Island.

Q01Do I need a license to do plumbing in Rhode Island?+
Yes. Contracting for plumbing requires a DLT master plumber license (or a plumbing contractor license backed by a master), and doing the work requires a journeyperson license or apprentice registration (R.I. Gen. Laws §§ 5-20-8, 5-20-12, 5-20-17).
Q02How long does it take to become a journeyperson plumber?+
At least four years as a registered apprentice with 8,000 hours of on-the-job training in a five-year period, including 576 hours of related instruction, then the exam (§ 5-20-17). Alternate routes exist for two academic years of plumbing study or an associate degree plus two years as an apprentice.
Q03What does renewal cost?+
Master plumber licenses renew for $240 and journeyperson licenses for $72 every two years on the licensee's birthday, with a $12 per month delinquency assessment for late renewal (§ 5-20-23).
§ 09 · Sources

Primary authorities, not secondary summaries.

Every fact in this file was checked against these official sources on October 2026.

Pending verification: Initial master and journeyperson license fees (statute states the $75 application fee and the $240 / $72 biennial renewal fees; initial license fee assumed equal but not confirmed) · Current CE hour count the plumbing board has set by rule (statutory cap is 15 hours) · Whether homeowners may perform their own plumbing under permit (the plumbing exemption section was only partly read)

General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.

These are the documents Iris tracks for you.

Store licenses, permits, policies, and renewal dates in one place.