New Jersey backflow testing rules
Under New Jersey's Uniform Construction Code (DCA Bulletin 99-2, citing N.J.A.C. 5:23-2.23(l)), testable backflow preventers are tested before final inspection and every year.
Is an annual test required?
Which properties need a backflow preventer
Testable devices at one- and two-family homes do not need a yearly test under the construction code, though a water system may set its own rules.
Source: Testable devices at one and two family homes are not required to be tested annually
Who may do the test
Construction inspectors may not do the test themselves; the owner has it done by a qualified tester.
How the test report is filed
The owner sends the test certification to the construction office, and the inspector issues a certificate of compliance valid for one year.
For dedicated fire lines, the annual certificate also meets the NFPA 25 annual backflow test requirement.
If a test is missed
Devices that fail must be repaired or replaced, and a replacement needs a permit (DCA Bulletin 99-2).
Source: Devices that fail must be repaired or replaced, and replacement needs a permit
Common questions
Is backflow testing required every year in New Jersey?
Under New Jersey's Uniform Construction Code (DCA Bulletin 99-2), testable backflow preventers are tested before final inspection and every year, but devices at one- and two-family homes do not need a yearly test.