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Specialized Plumbing Inspector

Course description

The Specialized Plumbing Inspector (SPI) course explains the codes and processes for performing plumbing inspections covered on light commercial plumbing installations covered by the Oregon Plumbing Specialty Code. The course addresses the various components of plumbing installations that are verified during the inspection pursuant to OAR 918-098-1570(1): “Specialized plumbing inspectors may inspect plumbing and piping systems conveying potable water, storm, or domestic sanitary sewage in buildings less than 75 feet above grade in height as defined in the Oregon Structural Specialty Code and containing a building water service less than two inches in nominal interior diameter."

The course is taught through interactive training between the instructor and students, specific questions and assigned research, a progress review and final review. Students employed by a municipality who successfully complete the course will be issued an Oregon Specialized Plumbing Inspector certification.


  • Oregon Inspector Certification (OIC); and
  • Residential Plumbing Inspector (CAP) certification; and
  • Have been employed as an inspector and performed inspections as a one- and two-family or residential plumbing inspector for a minimum of one year prior to applying for and being accepted into this course. [OAR 918-098-1570]

Course information

  • Fees: $200 course fee (exam fee included)
  • Length: 12-14 weeks
    • Class days that fall on a state closure will extend the course by one day
      for each occurrence
  • This course is currently offered online only

Required course work

  • Regular progress exams will be assigned throughout the course.
  • Reading assignments or homework may be given at the end of each lesson
  • Quizzes will be given after each lesson, or at discretion of the instructor
  • Progress exams are proctored online via webcam and microphone

State Exam

  • Students who complete all course requirements will choose a proctored location to take the state exam.
  • Students may use code book and code reference material
  • Lessons, hand written notes and electronic devices are Not Allowed

Required course materials

inspector training logo  

Course instructor

Max Butler
Plumbing Code Specialist, Trainer