What is considered lead-based paint?

Lead-based paint is specifically defined based on its lead content. The criteria for identifying lead-based paint is that it must contain either 1.0 milligrams per square centimeter (mg/cm²) or more of lead or 0.5% by weight. This scientific threshold is established to determine the potential risk to health, particularly for children who are most vulnerable to lead exposure.

When paint meets this criterion, it is classified as lead-based, necessitating specific handling and remediation practices. The focus on the measurable lead content ensures that the definition is based on actual health risks rather than general characteristics of paint.

Identifying paint merely by its age or whether it is peeling does not accurately reflect the risk since lead can be present in paint manufactured at different times, not solely those produced before 1978. Similarly, any paint that could be harmful to children is a broad classification and does not specifically quantify the lead risk associated with paint, which is critical for effective lead management and assessment.