TX Plumber study materials
TX Plumber study resources

TX Plumber cheat sheet

TX Plumber · Keep the key ideas within reach.

Quick reference

Responsible Master Plumber

  • A Responsible Master Plumber (RMP) holds the master plumber license and is the license holder of record for a plumbing contracting business; the business operates under that license number.

  • Only a licensed plumbing contractor may advertise or contract to perform plumbing work; the RMP is accountable for all plumbing work performed under the business license.

  • Continuing education for license renewal is a fixed number of clock hours per renewal cycle, with a set portion devoted to the current plumbing code; verify the current cycle total before renewal.

  • A change of business name, address, or RMP of record must be reported to the state licensing board within the timeframe set by board rule, typically a short window such as 30 days.

  • The RMP is responsible for obtaining permits for work performed under the business license and for ensuring inspections are requested at required stages.

  • Insurance and bond requirements (general liability and, where required, workers' compensation) must remain in force for the license to stay active.

  • License discipline, including suspension or revocation, can attach to the RMP personally for code violations or unlicensed activity by the business.

  • A plumbing contractor license is not transferable; a new owner or new RMP requires a new or amended license application.

Quick reference

Master Plumber

  • A master plumber license authorizes the holder to perform plumbing work and to supervise and employ journeyman and tradesman plumbers.

  • Master license eligibility generally requires documented years of verified journeyman-level experience plus passage of a master-level exam covering code and business practice.

  • Master plumbers may design and install plumbing systems and are responsible for code compliance of work performed under their supervision.

  • Renewal requires completing the required continuing education hours for the cycle; failure to renew by the deadline may require reinstatement or reexamination.

  • A master plumber supervising an apprentice must maintain the statutory journeyman-to-apprentice or master-to-apprentice ratio required by board rule.

  • Master plumbers may serve as the qualifying license holder for a plumbing contracting business, subject to separate contractor licensing.

  • Scope limits: a master plumber may not perform work outside the plumbing trade, such as regulated electrical or gas work, unless separately licensed.

Quick reference

Journeyman Plumber

  • A journeyman plumber license authorizes the holder to perform plumbing work independently under a master plumber or plumbing contractor.

  • Journeyman eligibility generally requires a set number of documented apprentice hours (commonly expressed in thousands of on-the-job hours) plus passage of the journeyman exam.

  • Journeymen may supervise apprentices and tradesman plumbers as allowed by board rule, but may not contract with the public as a plumbing business.

  • Journeyman license renewal requires completing continuing education hours each cycle, with a portion dedicated to code updates.

  • Journeymen must work under a licensed plumbing contractor or master plumber and cannot hold themselves out as a plumbing contractor.

  • Out-of-state or military experience may count toward journeyman eligibility where the board recognizes verifiable equivalent hours.

  • Journeyman licenses are individual and nontransferable; a journeyman working for a new employer does not need a new license.

Quick reference

Tradesman Plumber-Limited

  • The tradesman plumber-limited license authorizes a restricted scope of plumbing work, typically limited to work under the supervision of a master or journeyman plumber.

  • Tradesman-limited holders generally may not perform work requiring a journeyman or master license, such as complex system design or contracting with the public.

  • Eligibility typically requires fewer documented on-the-job hours than a journeyman license plus passage of the tradesman-limited exam.

  • Renewal requires the continuing education hours set for that license class each cycle.

  • Scope restrictions are defined by board rule; work outside the limited scope requires journeyman or master licensure.

  • A tradesman-limited license does not authorize the holder to operate a plumbing contracting business or obtain plumbing permits as a contractor.

Quick reference

Plumbing Inspector

  • A plumbing inspector enforces the adopted plumbing code by inspecting permitted work at required stages and issuing approvals or correction notices.

  • Inspectors must hold the inspector license or certification required by the jurisdiction and maintain continuing education for renewal.

  • Typical inspection stages include rough-in (before concealment), top-out, and final; concealed work must be inspected before covering.

  • Inspectors verify code compliance for materials, sizing, slope, venting, trap arm distances, and testing of drain and water systems.

  • A correction notice identifies code deficiencies and requires reinspection after corrections; work may not proceed past a failed stage.

  • Inspectors have authority to order tests (water, air, or smoke) and to require removal of noncompliant or unapproved installations.

  • Inspectors must apply the code edition adopted by the jurisdiction and cannot waive code requirements absent a formal variance process.

Quick reference

Apprentice Registration

  • Plumbing apprentices must be registered with the state licensing board and work under a licensed supervising plumber.

  • Apprentice registration typically requires an employer or sponsor and enrollment in a board-approved apprenticeship or training program.

  • Apprentice on-the-job hours are logged and verified; documented hours count toward journeyman eligibility.

  • A maximum ratio of apprentices to licensed plumbers (journeyman or master) applies per board rule and must be maintained by the employer.

  • Apprentice registration must be renewed on the cycle set by the board; lapsed registration may not count toward licensure hours.

  • Apprentices may perform plumbing work only under supervision and may not contract with the public or obtain permits as a contractor.

  • Changes in employer or supervising plumber must be reported to the board so the apprentice's hour records remain valid.