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View all 4 NITC Journey Level Plumber Subjects
General Knowledge of the Uniform Plumbing Code
89%
8 of 9 Correct
Sizing Drainage, Waste, and Vent Systems
56%
5 of 9 Correct
Sizing Fuel Piping
55%
6 of 11 Correct
Sizing Water Supply and Distribution
38%
3 of 8 Correct
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Essential 
skills the world needs.
skills the world needs.
The NITC Journey Level Plumber certification validates the knowledge and skills required of experienced plumbing professionals working in residential, commercial, and industrial settings. Certified journey-level plumbers are expected to safely install, repair, service, and maintain plumbing systems for potable water, drainage, waste, venting, and gas distribution. Candidates must demonstrate competence in blueprint reading, plumbing system design, code compliance, trade-related math, and industry best practices while working independently or supervising others on the jobsite.
To qualify for the exam, candidates must have completed a UA training program or equivalent and document at least four years of plumbing installation experience. The open-book certification exam is based on the 2021 Uniform Plumbing Code (UPC) published by IAPMO and consists of 100 multiple-choice questions to be completed in 2.5 hours. A passing score of 75% is required to earn certification, and candidates may reference the 2021 UPC codebook during testing.
The exam focuses equally on four critical areas of professional practice: General Knowledge of the Uniform Plumbing Code, Sizing Drainage, Waste, and Vent Systems, Sizing Water Supply and Distribution Systems, and Sizing Fuel Gas Piping. Success requires more than memorizing code provisions; it demands the ability to quickly locate information, apply code requirements, and perform accurate system sizing calculations. Pocket Prep's NITC Journey Level Plumber Exam Prep helps you build confidence in these key areas so you can walk into exam day prepared to succeed.
Exam Information
NITC Candidate Information Bulletin for Certification Exams (February 11, 2026)
To qualify for the exam, candidates must have completed a UA training program or equivalent and document at least four years of plumbing installation experience. The open-book certification exam is based on the 2021 Uniform Plumbing Code (UPC) published by IAPMO and consists of 100 multiple-choice questions to be completed in 2.5 hours. A passing score of 75% is required to earn certification, and candidates may reference the 2021 UPC codebook during testing.
The exam focuses equally on four critical areas of professional practice: General Knowledge of the Uniform Plumbing Code, Sizing Drainage, Waste, and Vent Systems, Sizing Water Supply and Distribution Systems, and Sizing Fuel Gas Piping. Success requires more than memorizing code provisions; it demands the ability to quickly locate information, apply code requirements, and perform accurate system sizing calculations. Pocket Prep's NITC Journey Level Plumber Exam Prep helps you build confidence in these key areas so you can walk into exam day prepared to succeed.
A passing score is 75% or higher.
Skilled Trades
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