Purchasers of homes built prior to which year must be given a notice about the dangers of lead poisoning?

The correct answer is 1978 because this is the year when the United States Environmental Protection Agency (EPA) implemented regulations regarding lead-based paint in residential properties. The Lead-Based Paint Hazard Reduction Act, specifically, mandates that sellers and landlords of homes built before 1978 must disclose the presence of lead-based paint and provide buyers with an information pamphlet titled "Protect Your Family from Lead in Your Home." This requirement is crucial for protecting public health, especially for young children, who are particularly vulnerable to the effects of lead poisoning. Homes constructed after 1978 are not subject to these disclosures as they are assumed to be free of lead-based paint.