According to the HUD Lead Safe Housing Rule, what is the small area threshold for exterior surfaces?

The small area threshold for exterior surfaces, as outlined in the HUD Lead Safe Housing Rule, is indeed 20 square feet. This threshold is significant because it helps determine when lead hazard evaluations and control measures are required in residential properties, particularly those that are federally assisted or receive federal funding.

When an exterior surface has areas greater than 20 square feet that are disturbed or deteriorating, the property is considered to be at higher risk for lead exposure, thus necessitating further inspection and potential remediation actions as per regulatory requirements. Maintaining this threshold is crucial for ensuring the safety and health of occupants, especially in homes with children or pregnant women who are particularly vulnerable to lead exposure.