In which year must buildings be constructed to potentially contain PACM?

Buildings constructed before 1980 are considered to potentially contain Presumed Asbestos-Containing Material (PACM). This timeframe is critical because asbestos was commonly used in numerous building materials, such as insulation, flooring, and ceiling tiles, up until regulations and bans began to take effect in the late 1970s. As a result, structures built during or before this period are often assessed for the presence of PACM.

Options referencing years after 1980, such as 1990, 2000, or 2010, reflect a time when the usage of asbestos in construction materials had significantly declined due to increasing awareness of health risks and the implementation of stricter regulations. Consequently, buildings from these later years are less likely to contain asbestos and therefore do not qualify for the designation of PACM.