Plumber Exam Prep / Colorado
Plumber Exam — CO
Journeyman Plumber Exam in Colorado
Complete breakdown of the journeyman plumber licensing process in Colorado — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Colorado Examining Board of Plumbers
- Exam Provider
- PSI Exams
- Code Edition
- 2021 IPC
- Passing Score
- 75%
- Question Count
- 80
- Exam Fee
- $65
- Experience Required
- 4 years
Note: Always verify current requirements with Colorado Examining Board of Plumbers.
How Colorado Compares Nationally
- Colorado's $65 plumbing exam fee is right in line with the national median.
- Colorado tests on the 2021 IPC — the most current code cycle in use across the states.
- The 75% passing bar is higher than the 70% most states require, so build in extra margin.
Colorado Plumber License — What to Know
Colorado requires a statewide journeyman plumber license. 75% passing score. Colorado uses the IPC.
Key Code Sections to Master
The International Plumbing Code (IPC) exam covers water supply, drainage, venting, fixtures, water heaters, storm drainage, and special piping. Focus on the table for pipe sizing (Table 604.4 for water supply, Table 710.1 for drainage fixture units), minimum fixture requirements by occupancy type, and venting rules. Drainage fixture units (DFUs) are frequently tested via calculation questions.
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Practice for the Colorado plumber exam
Use this state guide to understand the license requirements, then drill IPC and UPC practice in your browser with pipe-sizing tools. Web access and native app purchases are separate.
Colorado Journeyman Plumber Exam — Frequently Asked Questions
How do I get my journeyman plumber license in Colorado?
In Colorado, the journeyman plumber license is issued by Colorado Examining Board of Plumbers. The exam uses the 2021 IPC and is administered by PSI Exams. You need 4 years of experience. The exam fee is $65 and the passing score is 75%. Colorado requires a statewide journeyman plumber license. 75% passing score. Colorado uses the IPC.
What plumbing code is used in Colorado?
Colorado uses the 2021 IPC for its journeyman plumber exam. The exam has 80 questions with a passing score of 75%. The exam is administered by PSI Exams.
What is the difference between IPC and UPC on the plumber exam?
Colorado uses the International Plumbing Code (IPC). The IPC exam covers water supply, drainage, venting, fixtures, and pipe sizing. Key tables to master: Table 604.4 (water supply sizing) and Table 710.1 (drainage fixture units). The IPC is used by the majority of U.S. states.
What is the best app to study for the Colorado plumber exam?
VoltExam offers Colorado journeyman plumber exam prep on the web with IPC/UPC practice questions, explanations, state guidance, and built-in pipe sizing tools. Native mobile apps are available separately for offline study.