CPC RESIDENTIAL AND COMMERCIAL CALIFORNIA PLUMBING INSPECTOR (CPI) IAPMO’s National Personnel Certification Program

Exam Details:

  • Exam year offered: 2016, 2019, 2022
  • 100 Multiple Choice
  • Open book
    • Code book must match exam
  • Passing grade: 70%
  • Total time allowed: 3 hours

Examination Fee:

$225 FLEX Remote;  $250 In-Person (IAPMO Members)
$275 FLEX Remote;  $300 In-Person (Non-members)

EXAM TOPICS

% OF EXAM

TOPIC

5%

Definitions 

5%

General Regulations 

3%

Fixtures and Fixture Fittings

10%

Water Heaters 

10%

Water Supply and Distribution 

5%

Water Pipe Sizing 

8%

Sanitary Drainage 

7%

DWV Sizing

5%

Indirect Waste

12%

Vents

4%

Traps and Interceptors 

4%

Storm Drainage 

8%

Fuel Gas Piping

4%

Gas Piping Sizing

1%

Med-Gas

1%

Fire-stop Protection

3%

Alternate Water Sources

2%

Non-potable Rainwater Catchment Systems

3%

Reference Standards

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