On January 17, 2025, HUD published a notice modifying its elevated blood lead level (EBLL) threshold under its Lead Safe Housing Rule (24 CFR 35, subparts B – R)[2] from to 5 to 3.5 micrograms of lead per deciliter of blood (µg/dL) for a child under the age of 6, consistent with the Centers for Disease Control and Prevention’s current blood lead reference value of 3.5 µg/dL.
This notice also describes the required compliance dates for implementing this modification, which depend on whether the applicable State, State-level jurisdiction, territory, or local jurisdiction has already incorporated a blood lead level action threshold equal to or lower than the CDC’s current blood lead reference value (April 17, 2025) or not (July 16, 2025).
Questions about this notice can be directed to Warren Friedman, Office of Lead Hazard Control and Healthy Homes, Department of Housing and Urban Development, 451 7th Street SW, Room 8236, Washington, DC 20410-3000, telephone 202-402-7698 (this is not a toll-free number), and email LeadRegulations@HUD.gov