Code: XRF (lead paint testing method)
Description: (X-ray fluorescence lead paint test) is a non-destructive test that uses a handheld XRF machine to measure how much lead is in painted surfaces in a home. It is the standard method required in NYC for lead-based paint inspections under Local Law 31 and related lead safety rules.
Practical Meaning: For a NYC homeowner or landlord, this is the test an EPA-certified lead inspector uses to check if your apartment or building has lead-based paint at or above the legal level, usually 0.5 mg/cm². You must arrange XRF testing of all rental units and common areas in covered buildings by the deadlines in Local Law 31 and keep the written XRF report as proof for HPD.
Where You May See It: You may see “XRF testing” or “XRF inspection” in HPD lead-based paint notices, Local Law 31 guidance, inspection contracts, and reports from EPA-certified lead inspectors.
Why It Matters: If you do not complete required XRF lead paint testing and keep proper records, you risk HPD violations, civil penalties, and problems with refinancing or selling your building. Accurate XRF results also tell you exactly which surfaces need safe lead abatement or repair to protect children from lead poisoning.