Residential Plumbing Inspector (CAP) Last updated 10/29/2021

Print this page Back to search results



License Fee Description Exemptions


Residential plumbing inspectors conduct inspections and plan reviews on plumbing work ​performed in one- and two-family dwellings, townhouses, manufactured dwelling parks, recreational parks, organizational camps, and picnic parks.


Three years; renews with the OIC.

Renewal Information

A renewal notice will be mailed to the licensee approximately six weeks prior to the expiration of their license. Fees will be explained on the renewal form. Renewal fees vary by license type.

Duplicate License Requirements


Processing Time

Processing Time Description
1 Week Incomplete applications may cause delays.

Prerequisites and Requirements


Core qualifications

An individual seeking this code certification must first obtain the Oregon Inspector Certification (OIC). In addition, one of the following must be met:

​Two years of experience performing building permit inspections or plan reviews for or on behalf of a jurisdiction
A bachelor's or master's degree in architecture or engineering; or be a certified architect or engineer​

Individuals who do not meet one of the above qualifications may instead complete a code certification training course administered by the division. (If hired by a municipality, this requirement must be met within six months of hire)

Specific qualifications

To qualify using inspection experience you must have one of the following:

A valid Oregon Plumbing Specialty Code Inspector certification (PI)
Two years of experience as a plumbing inspector in another jurisdiction inspecting plumbing systems in commercial or residential structures for compliance with a recognized code for plumbing installations
A valid Residential Structural Inspector certification (CAS) ​and one year experience administering and enforcing the code. This qualification requires the completion of the division CAP training course.
*​Note: Inspectors certified by a nationally recognized certification body to inspect commercial and residential plumbing installations may be granted the one year experience requirement for the cross-training program.

To qualify using plumbing trade experience you must have two years of experience designing and installing plumbing systems as a journeyman plumber or its equivalent.

To qualify using education and training, you must have 90 quarter hours or 60 semester hours education and training in mechanical engineering, which includes designing and installing plumbing systems, through a college or community college.

An individual can also qualify using a combination of experience or education equivalent totaling three years.​​​​​​​​

Required Documentation

Completed application with applicable fee
Copy of high school diploma, GED or equivalent
Copy of apprenticeship completion (if required by license type)
Experience qualification documents (if required by license type)
Oregon Inspector Certification (OIC)

Examination Information

Four-hour, 64 question open book. Upon approval, a list will be provided outlining approved exam material.

Continuing Education Requirements

Varies by Certification. Continuing education requirements are dependent on code changes.

Bonding Requirements


Insurance Requirements


Additional Information

Other Information


Statutes, Administrative Rules, Ordinances

Other Detail Information

None Back to Top