ICC G24 National Standard Master Plumber Exam Prep Package

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Get one step closer to becoming a National G24 Master Plumber with an online exam prep course and all of the approved references to help you conquer the required ICC open book examination.

Use the online course structure to tailor your prep to your individual learning style. You’ll have a one full year of access to the online course. 

The Exam Prep Package Includes:

  • Online Exam Prep Course
    • Test-taking techniques and tips
    • Highlighting and tabbing locations for the 2018 International Plumbing Code
    • Timed practice exams with hundreds of questions in a simulated computer-based format
    • Downloadable and printable practice exams
    • One (1) year of online access
  • Approved References for the Exam
    • 2018 International Plumbing Code and affixable pre-printed tabs


The ICC National Contractor Exam is used in many municipalities across the country including:

Colorado: Arvada, Aurora, Colorado Springs, Denver, Grand Junction, Pueblo

Kansas: Johnson County, Sedgwick County, Shawnee County

Texas: San Marcos, Seguin

Wyoming: Casper, Cheyenne


Examination Outline - This examination is OPEN BOOK

Total Questions (multiple choice): 100
% Required to Pass: 70%
Time Limit: 4 Hours


Subject Area % of Questions
Administration General Regulations
Plumbing Fixtures
Water Supply and Distribution
Sanitary Drainage
Plumbing Vent Requirements
Traps, Interceptors, & Separators
Storm Drainage