Lead abatement is an activity designed to permanently eliminate lead-based paint hazards.
Abatement is sometimes ordered by a state or local government, and can involve specialized techniques not typical of most residential contractors.

SOURCE: https://www.epa.gov/lead/lead-abatement-inspection-and-risk-assessment#:~:text=Lead%20abatement%20is%20an%20activity,typical%20of%20most%20residential%20contractors.