Hawaii Backflow Prevention Tester Certification: Renewal Requirements

Regulating agency: Hawaii State Department of Health (Safe Drinking Water Branch)
Renewal cycle: Not published by the agency. Confirm directly with Hawaii State Department of Health (Safe Drinking Water Branch).
CE required: Not published by the agency. Confirm directly with Hawaii State Department of Health (Safe Drinking Water Branch).
Renewal fee: Not published by the agency. Confirm directly with Hawaii State Department of Health (Safe Drinking Water Branch).
Regulation level: State baseline with local variations

Last verified: 2026-07-14

Who regulates backflow tester certification in Hawaii

Hawaii sets baseline rules at the state level, but some local jurisdictions add their own requirements on top. Check both the state agency and your local water purveyor.

The authority for backflow tester credentials in Hawaii is Hawaii State Department of Health (Safe Drinking Water Branch). Hawaii Administrative Rules Title 11, Chapter 21 defines certified-tester classes but expressly defers administration to each county water agency (HAR §11-21-10). Confirmed only for Oahu: Honolulu Board of Water Supply requires a Certificate of Competence from PAMCA, USC-FCCCHR, or AWWA Cal-Nevada Section, valid 3 years. Maui, Kauai, and Hawaii County official pages publish tester rosters but not certification standards, so their cycle/CE/fee are unconfirmed; do not generalize Oahu's 3-year figure statewide.

How often you need to renew

Hawaii State Department of Health (Safe Drinking Water Branch) does not publish a fixed statewide renewal cycle online. Contact the agency to confirm your renewal date.

Continuing education and retesting requirements

Hawaii State Department of Health (Safe Drinking Water Branch) does not publish continuing education requirements online. Confirm with the agency before your renewal date.

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 Hawaii State Department of Health (Safe Drinking Water Branch) well before your expiration date.

How to renew, step by step

Confirm your exact expiration date on your certification card or with Hawaii State Department of Health (Safe Drinking Water Branch).
Complete any required refresher course or continuing education for your jurisdiction.
Submit the renewal application to the agency before the deadline.
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 Hawaii?

Hawaii State Department of Health (Safe Drinking Water Branch) does not publish a fixed statewide renewal cycle online. Contact the agency to confirm your renewal date.

Who regulates backflow tester certification in Hawaii?

Hawaii State Department of Health (Safe Drinking Water Branch). Hawaii sets baseline rules at the state level, but some local jurisdictions add their own requirements on top. Check both the state agency and your local water purveyor.

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

No. In Hawaii, requirements are set partly at the local level, so the renewal cycle, approved courses, and fees can differ from one jurisdiction to another.

What happens if my Hawaii 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 Hawaii State Department of Health (Safe Drinking Water Branch) well before your expiration date.

Official source

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