Which governmental agency outlines the regulations regarding lead-based paint disclosure?

The correct answer is the Department of Housing and Urban Development (HUD). This agency is responsible for enforcing the regulations surrounding lead-based paint disclosures specifically in residential properties built before 1978, when lead-based paints were banned for residential use. Under the Lead-Based Paint Hazard Reduction Act, HUD requires that landlords and sellers disclose known lead-based paint hazards to prospective tenants or buyers, as well as provide information on lead safety.

The Environmental Protection Agency (EPA) also plays a crucial role in lead safety but primarily focuses on broader environmental regulations and the safe handling and removal of lead-based paints. Although the EPA and HUD work together in lead-related matters, the direct regulation and disclosure requirements stipulated for residential properties falls under HUD's jurisdiction.

Occupational Safety and Health Administration (OSHA) deals more with worker safety and health regulations in the workplace, including regulations around lead exposure for workers, which is separate from residential disclosure laws. The Federal Trade Commission (FTC) focuses mainly on consumer protection and anti-competitive practices; it does not have a role in lead-based paint disclosures.

Understanding this context clarifies why the Department of Housing and Urban Development is the primary agency responsible for regulations regarding lead-based paint disclosure in the realm of real estate transactions.