Credentials · Certification

Professional Operator: Wastewater Collection

The PO designation for wastewater collection system operators, four levels aligned with experience and education, earned by standardized exam plus documented experience.

Verified requirements

WhereExpiresRenewalContinuing education
United States (federal)YesConfirm with issuerConfirm with issuer

Information comes from issuing-authority sources. Confirm current rules, fees and eligibility before acting.