Iowa Onsite Waste Water Association
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CIOWTS Renewal Online Payment
Please complete the form below to renew your CIOWTS Credential. Renewal documents will be mailed just prior to the expiration date. Document updates are based on renewal date, not payment date.
Refer to your most recent CIOWTS credential renewal invoice for the amount due and your CIOWTS credential ID number.
Credential Information
Credential Level
CIOWTS Level B
$115.00
CIOWTS Level A
$120.00
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