The CIOWTS Test will not be available from the National Environmental Health Association after December 31, 3017.
IOWWA is in negotiations with NEHA to provide the CIOWTS test in Iowa. If you are interested in taking the CIOWTS exam please let IOWWA know so that you can be contacted when the test is available. Email firstname.lastname@example.org with your contact information.
The primary purpose of the certification credential is to set a standard of practice and create a baseline of knowledge for onsite wastewater system installations. Iowa counties are encouraged to adopt regulations providing for licensing of installers and to require CIOWTS certification. Counties currently requiring the CIOWTS credential are Benton, Black Hawk, Bremer, Buchanan, Butler, Chickasaw, Dallas, Delaware, Floyd, Grundy, Jasper, Jones, Linn, Marion, Scott, Story, Warren, Washington, and Winneshiek. Please check with your county sanitarian for specific requirements.
To review members and non-members who have the CIOWTS credential, please refer to the "CIOWTS List as of January 1, 2018, Members and Non-Members" PDF file in the Documents & Files section below.