CIOWTS (IOWWA) Certification Testing

Certified Installer of Onsite Wastewater Treatment Systems

(CIOWTS) Testing

MORE INFORMATION

Upcoming Test Information
Date:  Thursday, June 22 and Friday, June 23, 2023
Location:  TBD, Coralville IA

Testing Requirements: 

1. For both the Basic and Advanced Levels you must verify that you are at least 16 years old. Proof of age must be submitted prior to taking the test at the test site (copy of driver’s license, state issued ID or birth certificate).
2. If less than one (1) year experience, completion of the Installation Overview Course is required.  
3. Counties in Iowa requiring the credential use the Basic Level credential.