Registration for the 2026 Certified Plumbing Design Technician (CPDT) Exam Is Open

The 2026 Certified Plumbing Design Technician (CPDT) exam will be held via remote proctor from October 26 – November 6, and ASPE is pleased to announce that registration is now open.

To be eligible to take the CPDT exam, you must have one of the following:

  • Bachelor’s degree in engineering with one year of 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
  • Four years minimum of plumbing design experience

ASPE members who are in the Full or Associate member categories are automatically eligible to sit for the exam. Others must complete the  prior to submitting exam registration fees.

The cost to take the exam is $225 for ASPE members and $450 for nonmembers. Not an ASPE member?  to save on the CPDT exam fee and take advantage of all of ASPE’s member benefits.

Exam registration for eligible candidates is open at  until October 5, 2026.

What Is the CPDT Credential?

ASPE developed the CPDT credential to  of qualified plumbing designers early in their careers, and it is considered the first step toward ASPE’s CPD (Certified in Plumbing Design) credential. ASPE encourages all CPDTs to continue their education and work toward a CPD designation.

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