Before beginning work on a project, the contractor must inquire of the owner whether asbestos is present in any building or structure built before:

Before beginning work on a project, the contractor must inquire of the owner whether asbestos is present in any building or structure built before:

• A. 1982
• B. 1978
• C. 1989
• D. 1995

Answer: (B)

Asbestos was commonly used in construction materials through the late 1970s. Because of that, structures built before a certain cut-off year have a real chance of containing asbestos-containing materials. The question emphasizes checking for asbestos in any building or structure constructed before 1978, since older buildings are far more likely to house ACMs in insulation, fireproofing, flooring, and similar materials. If asbestos might be present, the contractor must arrange appropriate precautions and, if needed, work with a licensed asbestos abatement contractor to prevent worker exposure and comply with safety regulations. Buildings built after that date are less likely to contain asbestos, which is why 1978 is the date used here.