New Jersey Backflow Prevention Tester Certification: Renewal Requirements

Regulating agency
New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience
Renewal cycle
At least every 3 years (regulatory ceiling; individual certifying agencies may recertify more often)
CE required
Not published by the agency. Confirm directly with New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience.
Renewal fee
Not published by the agency. Confirm directly with New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience.
Regulation level
State baseline with local variations

Last verified: 2026-07-14

Who regulates backflow tester certification in New Jersey

New Jersey 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 New Jersey is New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience. Under N.J.A.C. 7:10-10.8, NJDEP does not certify testers directly; it approves third-party certifying agencies that train, examine, and recertify testers (currently: New England Water Works Association, ASSE, Plumbers & Pipefitters Local #9 Training Center, Kruger's Training Academy, Veterans Training Group). NJDEP's regulation sets initial-training minimums (26 hrs lecture + 6 hrs practical, 70%/80% exam pass thresholds) and a 3-year recertification ceiling, but renewal window/CE hours/fee are left to each approved agency and are not published by NJDEP. Do not confuse tester certification with the separate, annual, property-level Physical Connection Permit.

How often you need to renew

Backflow tester certification in New Jersey must be renewed every At least every 3 years (regulatory ceiling; individual certifying agencies may recertify more often).

Continuing education and retesting requirements

New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience 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 New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience well before your expiration date.

How to renew, step by step

  1. Confirm your exact expiration date on your certification card or with New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience.
  2. Complete any required refresher course or continuing education for your jurisdiction.
  3. Submit the renewal application 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 New Jersey?

Backflow tester certification in New Jersey must be renewed every At least every 3 years (regulatory ceiling; individual certifying agencies may recertify more often).

Who regulates backflow tester certification in New Jersey?

New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience. New Jersey 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 New Jersey?

No. In New Jersey, 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 New Jersey 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 New Jersey Department of Environmental Protection (NJDEP), Division of Water Supply and Geoscience well before your expiration date.

Official source

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

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