Which surfaces are classified as movable impact surfaces?

The classification of movable impact surfaces is crucial in assessing potential lead exposure in residential properties. Movable impact surfaces are defined specifically to include those surfaces that can be subjected to impact from objects, and that are within a certain height range.

Surfaces that are on windows with sills less than 5 feet from the floor meet the criteria for movable impact surfaces. This is important because these surfaces are accessible, and frequently contacted, particularly by children who may be playing in such areas. When children interact with these surfaces, the likelihood of distress and subsequent lead dust generation from older painted surfaces increases, heightening the risk of lead exposure.

In contrast, surfaces more than 5 feet above the floor are generally out of easy reach for children, thus not considered movable impact surfaces. Similarly, surfaces that do not move at all do not qualify because they lack the dynamic interaction that would allow lead dust to be generated through contact. Lastly, the color of the paint does not determine whether a surface is movable or not; therefore, painted white surfaces can either be movable or stationary, making that criterion irrelevant for this determination.