Backflow Prevention Device (RPZ) Not Filed or Tested in NYC
A compliance violation for buildings required to install and annually test backflow prevention assemblies (such as RPZ valves) that protect the potable water supply.
This condition overlaps our dedicated compliance service. Backflow Prevention Device Testing & RPZ Compliance →
What It Means
Certain buildings must install and annually test backflow prevention assemblies to protect the potable water supply. Plans are filed with DOB (which requires DOB-approved plans and an LMP permit to install the device), and devices are tested and reported annually under NYC DEP cross-connection control.
Why You Got It
Common triggers: no device where one is required; or a missed annual test or report.
Consequences & Penalties
Penalties are set by DEP/DOB rules. A specific penalty figure is not confirmed against a primary DEP/DOB page in our source, so none is stated here — confirm the current amounts and filing cadence with DEP/DOB.
Information current as of 2026-06-21. Penalty amounts and deadlines change — confirm specifics against your violation notice or with a Licensed Master Plumber.
How to Clear It
- A Licensed Master Plumber or engineer files backflow plans with DOB and installs the device.
- A certified tester performs the annual test.
- File the test report (DEP/DOB) and maintain the device on the annual cycle.
Timeline
An annual testing cycle applies; confirm your building’s specific filing cadence with DEP/DOB.
Related Laws & Rules
- NYC Plumbing Code
- NYC DEP cross-connection control
Frequently Asked Questions
Does my building need a backflow prevention device?
Certain buildings must install and annually test backflow prevention assemblies to protect the potable water supply. A Licensed Master Plumber can confirm whether a device is required and whether your annual testing is current.
How often does the device have to be tested?
On an annual testing cycle. The test must be performed and the report filed each year — confirm your building’s exact filing cadence with DEP/DOB.
Who can install and test the device?
Installation requires DOB-approved plans and a Licensed Master Plumber permit; the annual test is performed by a certified backflow tester.
Sources
Clear This Violation With a Licensed Master Plumber
Send us your notice and we'll handle the full NYC DOB plumbing violation removal — from diagnosis through DOB sign-off. Same-day response.