CPDT Exam Information

The exam is a 3.5-hour, 100-question multiple-choice examination.

To be eligible to take the CPDT Examination, a candidate must possess one of the following:

• Bachelor's degree in engineering with 1-year experience designing plumbing systems
• Associate’s or Bachelor’s degree in a field related to engineering (physics, mathematics, architecture, civil, environmental studies, construction, HVAC, etc.) and a minimum of two years of experience designing plumbing systems
• 4 years minimum of plumbing design experience

ASPE Members who are in the Full or Associate member categories are automatically eligible to sit for the examination. To inquire if you'd be eligible, you must fill out the eligibility form to notify the Credentialing Committee. The form is available from May through September.

Read more about the exam in the candidate bulletin.