What are the three categories of Asbestos Containing Material (ACM) according to the EPA?

The three categories of asbestos-containing material (ACM) as defined by the Environmental Protection Agency (EPA) encompass surfacing material, thermal system insulation, and miscellaneous materials. Surfacing material refers to materials that are applied to surfaces to provide a degree of fireproofing, acoustical performance, or aesthetic appearance, such as sprayed-on fireproofing or textured ceilings. Thermal system insulation includes materials that are used to insulate pipes, boilers, and other thermal components to prevent heat loss and protect against heat exposure. Miscellaneous materials cover a broader range, including materials like flooring and ceiling tiles that may contain asbestos but do not fit the other two specific categories.

The other options provided do not encompass the range of materials categorized by the EPA. For instance, while insulation and gaskets are types of materials found in buildings, they do not adequately define the established categories. Furthermore, roofing and siding may include some components made with asbestos, but they don't represent the comprehensive classification system used by the EPA. Lastly, sprayed, troweled, and boarded describe methods of application or fabrication rather than the categories themselves. Understanding these distinctions is crucial for managing asbestos safely and adhering to regulatory standards.