Testing Services
- Information for Examinees
- Standardized Exams
- Examination Resources
- Information for Testing Clients
- Reciprocity Solutions for OpCert Programs
- FAQs
Study materials to help you succeed.
ABC works with AWWA and WEF to develop guides to help operators prepare for taking a certification exam. These guides are available for purchase from:
Water Treatment and Distribution Operators
- American Water Works Association Bookstore
Phone (800) 926-7337
Wastewater Treatment, Collection and Wastewater Lab
- Water Environment Federation Bookstore
Phone (800) 666-0206
- WEF/ABC/C2EP Wastewater Operators' Guide to Preparing for the Certification Examination
- WEF/ABC/C2EP Collection Systems Operators' Guide to Preparing for the Certification Examination
- WEF/ABC Wastewater Laboratory Analysts' Guide to Preparing for the Certification Examination
- WEF/ABC Wastewater Treatment Fundamentals l - Liquid Treatment Guide to Preparing for the Certification Examination
Wastewater and Laboratory practice questions developed by WEF are available in the Skills Builder section of WEF's website.
Very Small Water Systems Operators
- The Very Small Water System Operators' Guidebook to Preparing for Certification relates to critical knowledge required to competently operate water systems.
- Very Small Water Systems web-based practice exam
Biosolids Land Applier Operators
- Water Environment Federation Bookstore
Phone (800) 666-0206
- WEF/ABC Biosolids Land Appliers' Guide to Preparing for the Certification Examination