Next exam dates will be in the Fall 2026, TBD. Registration will open in August 2026.
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.
Read more about the exam in the CPDT Candidate Bulletin.