Oklahoma Water & Wastewater Operator Certification

Who regulates water operators in Oklahoma?

Oklahoma Department of Environmental Quality, Water Quality Division, Operator Certification Unit administers the credentials covered here.

Visit the official agency →

Certification types

• Waterworks and wastewater works operator Classes D, C, B, A
• water/wastewater laboratory C, B, A
• distribution/collection C Operator and Technician
• groundwater and lagoon operations are included.

Certification levels / grades / classes

Waterworks and wastewater works operator Classes D, C, B, A; water/wastewater laboratory C, B, A; distribution/collection C Operator and Technician; groundwater and lagoon operations are included.

Initial certification requirements

Meet OAC 252:710 training/experience requirements, apply in the Operator Certification Portal and pass the applicable certification examination.

Exam information

Meet OAC 252:710 training/experience requirements, apply in the Operator Certification Portal and pass the applicable certification examination.

Renewal cycle

Annual renewal due June 30. Renewal training: A 16 hours, B 12, C 8, D/Technician 4; four classroom hours required. Highest license controls the total, capped at 16 per period.

Continuing-education requirements

Annual renewal due June 30. Renewal training: A 16 hours, B 12, C 8, D/Technician 4; four classroom hours required. Highest license controls the total, capped at 16 per period.

Reciprocity / out-of-state operators

DEQ recognizes an out-of-state certification when that state also recognizes Oklahoma certification; apply for the equivalent Oklahoma credential.

Water vs. wastewater differences

Waterworks and wastewater works operator Classes D, C, B, A; water/wastewater laboratory C, B, A; distribution/collection C Operator and Technician; groundwater and lagoon operations are included.