NH Journeyman Plumber
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ExploreAbout this exam
The New Hampshire Journeyman Plumber license is a state-issued credential administered through the New Hampshire Office of Professional Licensure and Certification (OPLC) and its Board of Plumbers. It is intended for plumbers who have completed the required practical experience and want to work as licensed journeymen under New Hampshire rules rather than as apprentices or unlicensed helpers. The licensing examination is multiple choice and is organized around seven content areas: general plumbing knowledge; plumbing fixtures and fixture fittings; water heaters and related equipment; water supply and distribution systems; sanitary drainage, vents, and storm drainage; fuel gas piping and gas appliances; and the New Hampshire plumbing code, statutes, and rules. Because the Board's public page could not be retrieved at the time this guide was compiled, the exact question count, time limit, passing score, fee, retake policy, and license validity period are not confirmed here; verify them with the Board before scheduling. To prepare, work through each content area systematically, practice code-lookup speed in the adopted plumbing code and fuel gas code, and review New Hampshire-specific statutes and administrative rules, since that material is tested separately from the model codes. Treat this page as a study aid, not as an official Board publication, and confirm all administrative details directly with the OPLC.
What you'll study
About NH Journeyman Plumber preparation
Is this the official New Hampshire Journeyman Plumber exam page?
No. This is an independent study resource and is not affiliated with the OPLC, the Board of Plumbers, or any testing vendor. Licensing requirements, application steps, and exam administration come only from the Board. Use this page to organize your study and confirm every administrative detail with the Board before you apply or schedule.
What format is the exam?
The exam is multiple choice. The content areas and their approximate weights are listed on this page, but the number of items, whether questions are scored equally, and whether any sections are combined could not be verified from the Board source. Check the current candidate handbook for the definitive format before test day.
How long is the exam and what score do I need to pass?
Those values are not confirmed here because the Board page could not be retrieved. Do not rely on numbers from older prep materials or forum posts, since exams are revised. Contact the OPLC or check the current candidate handbook for the time limit, passing score, and any section-level requirements.
How much does it cost, and what happens if I fail?
The application and examination fees and the retake policy are set by the Board and are not verified on this page. Ask the Board how many attempts are allowed, whether a waiting period applies between attempts, and whether the full fee is charged again. Get the answer in writing before you sit for the exam.
How difficult is the exam?
Expect a working-knowledge exam rather than a recall quiz. Many items require locating and applying a code section under time pressure, and the New Hampshire statutes and rules section is separate from the model codes. Candidates who only memorize tables usually struggle; those who practice fast code lookups and read the state-specific material tend to do better.
What study order do you recommend?
Start with general plumbing knowledge and drainage and venting, since they carry the most weight and support other topics. Then cover fixtures, water supply, and water heaters. Add fuel gas piping and appliances, and finish with New Hampshire statutes and rules. Leave the last weeks for timed practice and code-lookup drills across all sections.
What are the most common failure modes?
Three repeat problems: misreading questions that ask for the exception rather than the general rule, losing time hunting through an unfamiliar codebook, and skipping the New Hampshire-specific material because it feels like a small part of the exam. Also watch unit conversions and sizing tables, where a single wrong column produces a confidently wrong answer.
Which references can I use during the exam?
The Board determines whether the exam is open book and which code editions and references are permitted in the testing room. This page cannot confirm that. Ask the Board which code editions are currently adopted in New Hampshire, then practice with exactly those editions so your tabbing and index habits match what you will have available.
How long is the license valid, and how do I renew?
The license term and renewal requirements are set by the Board and are not confirmed here. Before you apply, ask about the renewal cycle, continuing education hours, and any late fees. Record the expiration date when your license is issued so you do not miss the renewal window.