Ohio Backflow Prevention Tester Certification: Renewal Requirements

Regulating agency
Ohio Department of Commerce, Division of Industrial Compliance
Renewal cycle
3 years
CE required
8 hours
Renewal fee
$75 renewal ($50 application + $50 exam = $100 for initial certification)
Regulation level
Statewide

Last verified: 2026-07-14

Who regulates backflow tester certification in Ohio

Certification is regulated at the state level: one credential is valid across Ohio.

The authority for backflow tester credentials in Ohio is Ohio Department of Commerce, Division of Industrial Compliance. Three certificate classes: Class A (any isolation backflow device statewide, tied to plumbing/hydronics/fire-protection licensure), Class B (lawn irrigation only), Class C (public-water-system-owned devices). All administered centrally by the state via the Industrial Compliance Customer Portal, genuinely statewide, not municipal. Renewal requires an 8-hour approved course plus a practical test.

How often you need to renew

Backflow tester certification in Ohio must be renewed every 3 years.

Continuing education and retesting requirements

To renew in Ohio, testers must complete: 8 hours.

Renewal deadline and grace period

The agency does not publish a formal grace period online. Treat your expiration date as hard: Water purveyors generally stop accepting test reports from testers whose certification has lapsed, and many jurisdictions require retaking the full certification course instead of a simple renewal once the credential expires. Confirm the exact grace period, if any, with Ohio Department of Commerce, Division of Industrial Compliance well before your expiration date.

How to renew, step by step

  1. Confirm your exact expiration date on your certification card or with Ohio Department of Commerce, Division of Industrial Compliance.
  2. Complete the required continuing education: 8 hours.
  3. Submit the renewal application and the $75 renewal ($50 application + $50 exam = $100 for initial certification) fee to the agency before the deadline.
  4. Keep your test kit calibration certificate current: most jurisdictions require annual gauge calibration alongside a valid tester credential.

Frequently asked questions

How often do I need to renew my backflow tester certification in Ohio?

Backflow tester certification in Ohio must be renewed every 3 years.

Who regulates backflow tester certification in Ohio?

Ohio Department of Commerce, Division of Industrial Compliance. Certification is regulated at the state level: one credential is valid across Ohio.

Is backflow tester certification the same in every county in Ohio?

Mostly yes. Ohio issues a statewide credential, so the core renewal requirements are the same everywhere in the state. Individual water purveyors may still have their own reporting procedures.

What happens if my Ohio backflow tester certification expires?

Water purveyors generally stop accepting test reports from testers whose certification has lapsed, and many jurisdictions require retaking the full certification course instead of a simple renewal once the credential expires. Confirm the exact grace period, if any, with Ohio Department of Commerce, Division of Industrial Compliance well before your expiration date.

Official source

Data on this page was verified on 2026-07-14 against:

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