ICC Master Plumber w/Gas - G27-N Exam Book Package

The ICC Master Plumber w/Gas - G27-N Exam Book Package is designed for candidates preparing for the ICC National Standard Master Plumber with Gas exam using two important code references: the International Plumbing Code, 2018 and the International Fuel Gas Code, 2018. This package supports study for master-level plumbing and fuel gas topics, including administration, general regulations, plumbing fixtures, water supply and distribution, sanitary drainage, plumbing vents, traps, interceptors, separators, storm drainage, gas piping, fuel supply, appliance connections, and fuel gas safety requirements.

Master plumber with gas exam preparation requires more than field experience. A plumbing professional may understand rough-in work, fixture installation, drainage, venting, water distribution, gas piping, appliance connections, testing, and inspections, but an ICC trade exam requires candidates to apply that knowledge through code-based questions. Candidates must be able to read each question carefully, identify whether the topic belongs in the plumbing code or fuel gas code, locate the applicable section, and apply the requirement accurately under timed exam conditions.

This book package gives candidates the references needed to study plumbing and gas code requirements together. The International Plumbing Code, 2018 supports study of plumbing system installation, fixtures, water heaters, water supply, sanitary drainage, venting, traps, interceptors, separators, storm drainage, and general plumbing code requirements. The International Fuel Gas Code, 2018 supports study of gas piping, fuel supply, pipe sizing concepts, pressure testing, regulators, appliance connections, shutoff valves, combustion air, chimneys, vents, and gas utilization equipment.

The ICC Master Plumber w/Gas - G27-N exam is associated with master-level plumbing knowledge plus fuel gas piping requirements. Candidates preparing for this exam should be comfortable with plumbing terminology, code organization, fixture requirements, water distribution, drainage, venting, storm drainage, gas piping, gas appliance connections, fuel gas safety, and reference navigation. This package is useful for master plumber candidates, plumbing contractors, qualifying individuals, supervisors, service technicians, and trade professionals preparing for the G27-N exam.

What You Get

• International Plumbing Code, 2018 — A plumbing code reference used to study general plumbing regulations, fixtures, water heaters, water supply and distribution, sanitary drainage, vents, traps, interceptors, separators, storm drainage, plan reading support, inspections, approved materials, and plumbing system safety provisions.
• International Fuel Gas Code, 2018 — A fuel gas code reference used to study gas piping systems, fuel supply, pipe sizing concepts, materials, joints, valves, regulators, appliance connections, pressure testing, combustion air, chimneys, vents, and fuel gas safety requirements.

This two-book package helps candidates prepare across the major areas of the G27-N Master Plumber with Gas exam. The IPC supports plumbing system study, while the IFGC supports gas piping and fuel gas system study. Together, these references help candidates build stronger code navigation skills and a better understanding of the requirements used in plumbing and gas installation, supervision, and service work.

Exam Details

The ICC Master Plumber w/Gas - G27-N exam is part of the ICC Contractor/Trades examination program. The National Standard Master Plumber with Gas exam is listed as an open-book exam with 100 multiple-choice questions and a 4-hour time limit. Candidates preparing for this exam should focus on both master-level plumbing knowledge and efficient reference use.

The exam content includes administration and general regulations, plumbing fixtures, water supply and distribution, sanitary drainage, plumbing vent requirements, traps, interceptors and separators, storm drainage, and gas piping. These categories reflect the broad working knowledge expected from master plumber with gas candidates who install, supervise, service, repair, or support plumbing and fuel gas systems.

Administration and general regulations may include code scope, permits, inspections, approved materials, definitions, system testing, installation requirements, protection of piping, and general responsibilities. Candidates should understand how the IPC and IFGC are organized and how general code provisions apply before moving into system-specific chapters.

Plumbing fixture questions may involve fixture types, clearances, installation requirements, fixture connections, water closets, lavatories, sinks, bathtubs, showers, drinking fountains, service sinks, and related code provisions. Candidates should be comfortable locating fixture tables and understanding how fixture requirements connect to drainage, venting, and water supply.

Water supply and distribution questions may involve water service piping, distribution piping, pipe materials, valves, fixture supply, backflow prevention, protection against contamination, hot water distribution, pressure-related requirements, and sizing concepts. Candidates should practice using the code book to locate water supply rules quickly and accurately.

Sanitary drainage and plumbing vents are major study areas for the G27-N exam. Sanitary drainage topics may include fixture units, drainage pipe sizing, slope, cleanouts, fittings, building drains, building sewers, indirect waste, branch drains, stacks, and waste piping. Venting topics may include trap arms, individual vents, common vents, wet vents, circuit vents, vent sizing, vent terminals, developed length, and system protection.

Traps, interceptors, and separators may include trap seals, prohibited traps, trap protection, grease interceptors, oil separators, solids interceptors, access requirements, and related installation responsibilities. Storm drainage may include roof drainage, storm piping, secondary drainage, leaders, conductors, and related drainage provisions.

Gas piping is the fuel gas portion of the exam. Candidates should review pipe sizing concepts, approved materials, fittings, joints, valves, regulators, appliance connections, sediment traps, pressure testing, purging, pipe support, protection from damage, prohibited locations, and fuel supply requirements. Gas piping questions may require careful use of the International Fuel Gas Code, 2018 and a strong understanding of safe installation practices.

The G27-N exam may be accepted differently by different licensing authorities. A city, county, state, municipality, or local agency may determine whether this exam is required for a specific master plumber with gas license classification. Passing an ICC exam does not automatically create a license unless the applicable authority recognizes the exam as part of its licensing process.

Open Book Test

The ICC Master Plumber w/Gas - G27-N exam is an open-book test. Open-book testing allows candidates to use approved references during the exam, but it does not remove the need for focused preparation. Candidates must know how to navigate the International Plumbing Code and International Fuel Gas Code efficiently, identify which reference applies to the question, and locate the correct requirement without losing time.

Open-book plumbing and gas exams reward candidates who understand code organization. Candidates should become familiar with the table of contents, indexes, definitions, chapter layouts, fixture tables, water distribution provisions, drainage tables, venting sections, trap requirements, storm drainage provisions, gas piping sections, fuel gas tables, and appliance connection rules. The goal is not simply to bring books into the exam room. The goal is to know how to use the books quickly and accurately.

The International Plumbing Code, 2018 is especially useful for plumbing fixtures, water supply, sanitary drainage, vents, traps, interceptors, separators, storm drainage, and general plumbing requirements. The International Fuel Gas Code, 2018 is especially useful for gas piping, fuel supply, pipe sizing concepts, pressure testing, regulators, valves, appliance connections, combustion air, and fuel gas safety requirements.

During study, candidates should practice deciding which reference applies before searching for an answer. A question involving drainage, venting, fixtures, water heaters, or water distribution may belong in the IPC. A question involving gas piping, fuel supply, regulators, appliance gas connections, combustion air, or venting of gas-fired equipment may belong in the IFGC. Strong reference-selection habits help candidates avoid losing time in the wrong book.

Because the exam has 100 questions and a 4-hour time limit, pacing matters. Candidates should practice answering questions under timed conditions. A strong open-book strategy includes identifying the topic first, using the index when needed, moving quickly to familiar chapters, reading the section carefully, and avoiding too much time on a single difficult question.

Licensing Steps

The ICC Master Plumber w/Gas - G27-N exam may be used by a city, county, state, municipality, local board, or licensing authority as part of a master plumber with gas qualification process. ICC administers contractor and trade exams, but licensing approval is controlled by the agency that issues or recognizes the license.

A typical licensing path may include identifying the correct plumbing or plumbing-with-gas license classification, confirming that the G27-N exam is required, reviewing the approved reference books, completing an application, receiving preauthorization when required, scheduling the exam, passing the exam, and submitting final licensing documents to the applicable authority. Depending on the jurisdiction, additional requirements may include work experience documentation, employer verification, contractor registration, responsible master plumber information, local registration, continuing education, insurance, bonding, or renewal compliance.

Candidates should begin by identifying the agency that controls plumbing and gas licensing in the location where they plan to work. That agency determines the correct exam, accepted score, required documents, application process, fees, license scope, and renewal rules. This G27-N book package supports the study portion of the process. It does not replace licensing applications, agency approvals, insurance certificates, bonding documents, business filings, work experience records, or local registrations.

State Requirements

Master plumber with gas requirements vary by state and local jurisdiction. Some states regulate plumbing and gas fitting licenses at the state level. Some areas use city, county, or municipal licensing. Other jurisdictions may regulate gas piping under plumbing, mechanical, fuel gas, or specialty classifications. Requirements may include local registration, trade exams, business licensing, insurance, bonding, work experience verification, or a combination of requirements before plumbing or gas piping work may be performed.

Candidates should review the requirements for the exact location where they plan to perform plumbing or gas piping work. Important items may include the accepted ICC exam code, license classification, application approval, experience documentation, training requirements, business entity requirements, insurance, bonding, workers’ compensation requirements, local code adoption, permit rules, inspection requirements, continuing education, and renewal deadlines.

This package is focused on the ICC Master Plumber w/Gas - G27-N book set and includes the International Plumbing Code, 2018 and International Fuel Gas Code, 2018. Candidates should make sure these references and the G27-N exam match the requirements of the licensing authority before scheduling the exam.

Reference Books

• International Plumbing Code, 2018
  This plumbing code reference supports study of general regulations, fixtures, water heaters, water supply and distribution, sanitary drainage, venting, traps, interceptors, separators, storm drainage, plan reading support, approved materials, inspections, pipe sizing concepts, and plumbing system safety provisions.
• International Fuel Gas Code, 2018
  This fuel gas code reference supports study of gas piping systems, pipe sizing concepts, materials, fittings, joints, valves, regulators, pressure testing, appliance connections, combustion air, chimneys, vents, vent connectors, approved materials, inspections, and fuel gas system safety provisions.

These two references work together because master plumber with gas candidates need to understand both plumbing system requirements and fuel gas system requirements. The IPC helps candidates study fixtures, water distribution, drainage, venting, traps, interceptors, separators, and storm drainage. The IFGC helps candidates study gas piping, pipe sizing, valves, regulators, appliance connections, combustion air, and fuel gas safety. A strong preparation routine should include practice using both references so candidates can identify the correct book and section quickly.

Test Information and Study Materials

Master plumber with gas preparation should be organized around the major exam categories and the way plumbing and fuel gas requirements are arranged in the reference books. Candidates should study administration and general regulations, plumbing fixtures, water supply and distribution, sanitary drainage, venting, traps, interceptors, separators, storm drainage, and gas piping. Random reading is less effective than a focused plan that connects each topic to the correct code chapter or table.

For the International Plumbing Code, candidates should focus on plumbing system requirements. Important areas include fixture installation, fixture clearances, water service piping, distribution piping, backflow protection, water heaters, sanitary drainage, drainage pipe sizing, cleanouts, fittings, vent sizing, trap arms, vent terminals, traps, interceptors, separators, storm drainage, and general installation requirements. Candidates should practice using the IPC index and tables because many plumbing questions require accurate lookup.

For the International Fuel Gas Code, candidates should focus on gas piping systems. Important areas include pipe sizing, pipe materials, fittings, joints, unions, valves, regulators, pressure limitations, concealed piping, underground piping, protection from damage, supports, appliance connections, sediment traps, testing, purging, combustion air, and prohibited locations. Fuel gas questions often require careful reading because requirements can change based on material, pressure, appliance demand, or installation condition.

Drainage and venting should receive close attention. Candidates should review fixture units, drainage pipe sizing, slope, cleanout locations, fitting requirements, vent sizing, individual vents, common vents, wet venting, circuit venting, vent terminals, developed length, and trap arm limits. These topics are central to plumbing work and often require repeated practice with code tables and definitions.

Water supply and distribution should also be studied carefully. Candidates should review pipe materials, valves, backflow prevention, protection against contamination, fixture supply requirements, hot water distribution, service pipe concepts, pressure-related provisions, and water heater installation requirements. Strong familiarity with water distribution chapters helps candidates move faster during an open-book exam.

Gas piping study should include both code navigation and practical understanding. Candidates should practice locating gas piping materials, sizing tables, pipe support requirements, appliance connection rules, shutoff valve requirements, pressure testing provisions, regulator requirements, sediment trap rules, and combustion air requirements. The gas portion of the exam can require candidates to move quickly through the IFGC and apply fuel gas safety concepts accurately.

Master-level preparation should also include careful review of system coordination. Plumbing and gas systems often involve more than one code topic at a time. A single question may involve fixture demand, drainage requirements, venting rules, gas appliance connection requirements, or safety-related installation details. Candidates should practice reading the entire question before choosing a reference or section.

A strong study routine should include timed reference practice. Candidates should practice looking up plumbing and gas terms, locating fixture provisions, reviewing drainage and venting tables, finding water supply requirements, locating gas piping rules, and answering questions using both books. Open-book exam success depends on more than knowing plumbing and gas work. It depends on using the references efficiently, reading questions carefully, and applying the correct code requirement.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps master plumber with gas candidates prepare with structure, focus, and practical study direction. Plumbing and gas exams require candidates to understand field work, code language, reference navigation, and system-specific requirements. Many candidates have plumbing or gas piping experience but need help turning that experience into an exam-ready study plan. 1 Exam Prep supports that process through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and confidence-building study structure.

For the ICC Master Plumber w/Gas - G27-N exam, candidates need to understand how the International Plumbing Code and International Fuel Gas Code apply to plumbing and gas piping work. 1 Exam Prep helps students focus on major areas such as administration and general regulations, plumbing fixtures, water supply and distribution, sanitary drainage, plumbing vents, traps, interceptors, separators, storm drainage, gas piping, and fuel gas safety.

Reference navigation is especially important for an open-book plumbing and gas exam. Candidates need to know when to use the IPC and when to use the IFGC. A candidate who can quickly identify the correct book and locate the correct section, table, or definition has a stronger exam-day advantage. 1 Exam Prep encourages practical study habits that help candidates become more comfortable using their references, interpreting questions, and applying code requirements.

This book package gives candidates the foundation needed for G27-N preparation. With the International Plumbing Code, 2018 and International Fuel Gas Code, 2018, students can study the major master plumbing and gas code areas and build stronger familiarity with the materials used during exam preparation. 1 Exam Prep helps candidates move toward their plumbing and gas licensing goals with organized review, realistic preparation, and better reference-use habits.

FAQ Section

What books are included in the ICC Master Plumber w/Gas - G27-N Book Package?

This package includes the International Plumbing Code, 2018 and the International Fuel Gas Code, 2018.

Is the ICC Master Plumber w/Gas - G27-N exam open book?

Yes. The National Standard Master Plumber with Gas exam is listed as an open-book test. Candidates should follow current testing rules for approved references, tabs, markings, notes, and book condition.

How many questions are on the G27-N Master Plumber with Gas exam?

The National Standard Master Plumber with Gas exam is listed with 100 multiple-choice questions.

How much time is allowed for the G27-N exam?

The exam is listed with a 4-hour time limit.

What topics should I study for the G27-N exam?

Important study areas include administration and general regulations, plumbing fixtures, water supply and distribution, sanitary drainage, plumbing vent requirements, traps, interceptors and separators, storm drainage, and gas piping.

Why is the International Fuel Gas Code included?

The International Fuel Gas Code supports study of gas piping, pipe sizing concepts, materials, valves, regulators, appliance connections, combustion air, pressure testing, and fuel gas safety requirements.

Does this book package include an online course?

This product is a book package. It includes the listed reference books and does not include online course access unless a separate course product is purchased.

Does passing the ICC G27-N exam automatically give me a plumbing or gas license?

No. Licensing is controlled by the applicable state, city, county, municipality, board, or local authority. The exam may be one part of the licensing process, depending on the jurisdiction.

Who should use this book package?

This package is useful for master plumber with gas candidates, plumbing contractors, qualifying individuals, supervisors, service technicians, and trade professionals preparing for the ICC Master Plumber w/Gas - G27-N exam.

How should I study with these books?

Study by topic and reference. Practice locating plumbing requirements in the IPC, gas piping requirements in the IFGC, and use timed practice to improve lookup speed and exam pacing.