Until 1978 lead paint was commonly used in paint on the interiors and exteriors of homes. Today, the US Department of Housing and Urban Development (HUD) estimates that about 38 million homes in the US still contain some lead paint. When the paint begins to deteriorate it can contaminate a household and cause lead poisoning. Even if the paint in your home is in good condition, remodeling and renovation activities can break down paint and cause the lead to emerge.
In 2010, the "Renovation, Repair and Painting Rule" rule issued by the EPA requiring the use of lead-safe work practices aimed at preventing lead poisoning in children came into effect. Firms performing renovation, repair and painting projects that disturb lead-based paint in homes, child care facilities, and schools built before 1978 must be certified, individual renovators must be trained by an EPA-accredited training provider, and the firms and renovators must follow specific work practices to prevent lead contamination.