NYC Is Proposing Even Stricter Lead Dust Thresholds — Here’s What Property Owners, Contractors, and Inspectors Need to Know

The New York City Department of Health and Mental Hygiene (DOHMH) has filed a proposed amendment to Article 173 of the NYC Health Code that would lower the thresholds for what constitutes “lead-contaminated dust” — and add new laboratory accreditation requirements for anyone testing for it.

This is a proposed rule, not a final one. If you work in lead-based paint inspection, abatement, or property management in New York City, this proposed rule affects you.

Background: Where These Numbers Come From

NYC has been ahead of the curve on lead dust standards for years. In 2019, following Local Law 66, the Board of Health adopted what were then the lowest dust-lead thresholds in the nation:

•  Floors: 5 µg/ft²

•  Window Sills: 40 µg/ft²

•  Window Wells: 100 µg/ft²
  

Those thresholds applied to both inspections and post-abatement clearance testing. Then, in response to a 2021 federal court mandate, the EPA revised its own dust-lead standards, effective January 2026. The EPA’s updated rule created two separate standards:

Pre-abatement standard for Dust Lead Hazards

(now called the “Dust-Lead Reportable Level” or “DLRL”): 

• “Any Reportable Level” of lead in dust is a hazard - meaning if an NLLAP-accredited lab can detect it, it counts.

Post-abatement Clearance: (now called the “Dust-Lead Action Levels” or “DLALs”): 

• 5 µg/ft² for floors, 40 µg/ft² for windowsills, and 100 µg/ft² for window wells.

NYC Administrative Code § 27-2056.2(8) requires the Board of Health to lower its thresholds whenever the EPA or HUD does so. The proposed amendment is the City’s response to that obligation.

What NYC Is Proposing

Rather than adopting the EPA’s two-tier system (one standard for inspections, a different one for clearance) DOHMH is proposing a single, unified standard for both stages.

The rationale is that a single standard is more consistently and reliably implementable by property owners and laboratories.

Surface	Current NYC Threshold	Proposed NYC Threshold
Floors	5 µg/ft²	4 µg/ft²
Window Sills	40 µg/ft²	32 µg/ft²
Window Wells	100 µg/ft²	80 µg/ft²

The proposed thresholds are based on the NLLAP laboratory quantitation standard: 80% of the lowest EPA dust-lead action level; and thus are 20% lower than the current NYC clearance levels, and lower than the EPA’s own action levels. They would apply to both lead dust hazard investigations and post-abatement clearance testing.

New Laboratory Requirements

The proposal also adds a dual accreditation requirement for any laboratory performing lead dust testing in NYC. Currently, labs must be accredited through New York State’s Environmental Laboratory Approval Program (ELAP) — specifically in the Solid and Chemical Materials field. Under the proposed rule, labs must also hold accreditation from the EPA’s National Lead Laboratory Accreditation Program (NLLAP).

Both certifications would be required for:

•  Lead dust sampling during inspections under Health Code § 173.13(d)(1)

•  Post-abatement clearance testing under Health Code § 173.14

  
  

If your current lab holds ELAP but not NLLAP accreditation, confirm their status before these rules take effect.

What This Means for You

• Property Owners and Building Managers

If you manage pre-1960 buildings subject to Local Law 1, Local Law 31 or Local Law 111, your clearance standard after any lead abatement work gets tighter. A work area that passes clearance today at 4.5 µg/ft² on a floor would fail under the proposed rule. Re-occupancy cannot happen until results from an NLLAP and ELAP-certified lab confirm no lead-contaminated dust is present. Owners are also required to provide copies of all clearance test results to building occupants.

• Contractors and Abatement Firms

Your post-work cleaning standard becomes more demanding and thorough cleanup protocols matter more, not less. Any firm performing work ordered by DOHMH or HPD, or work that disturbs over 100 square feet per room under applicable Administrative Code provisions must hold an EPA Lead Abatement Firm certification and use trained and EPA-certified Lead Abatement Workers.  The new thresholds apply to the clearance testing that follows that work.

• Inspectors and Risk Assessors

The proposed definition of “lead-contaminated dust” consolidates inspection and clearance thresholds into one standard. The cross-reference in § 173.13(d)(1) to the clearance levels in § 173.14(e) is being removed - the new definition in § 173.14(b) covers both contexts. Confirm that any laboratory you use for wipe samples meets both NLLAP and ELAP accreditation requirements under the proposed rule.

How to Comment or Participate

The public hearing will be held July 1, 2026, from 10:00 a.m. to 11:00 a.m. via Zoom. Anyone wishing to speak must sign up in advance.

• Zoom: https://health-nyc.zoomgov.com/j/1659351975 (Meeting ID: 165 935 1975, Passcode: 641009)

• Phone: (646) 828-7666 or toll-free (833) 568-8864 / (833) 435-1820, then enter the Meeting ID: 165 935 1975

• To register to speak, call Svetlana Burdeynik at 347-396-6078 or 347-396-6116 before the hearing date. You may also sign up when you join online Zoom meeting before the hearing begins

Written comments must be received by July 1, 2026 at 5:00 p.m.:

• Online: http://rules.cityofnewyork.us

• Email: resolutioncomments@health.nyc.gov

• Mail: NYC DOHMH, Gotham Center, 42-09 28th Street, CN 30, Long Island City, NY 11101-4132

• Fax: 347-396-6087

The full text of the proposed rule is available at the NYC Rules website: 

https://rules.cityofnewyork.us/wp-content/uploads/2026/05/Art.-173-NOI_Amendment-of-Rules-Relating-to-Lead-Dust_5-29-26.pdf