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In 29 CFR 1910.1001, OSHA discusses building materials that are Presumed Asbestos-Containing Materials (PACM). Under this standard, installed Thermal System Insulation (TSI), asphalt and vinyl flooring, and sprayed-on or troweled-on surfacing materials are treated as asbestos-containing in buildings constructed no later than 1980. The following list of building materials includes, but is not limited to, items that are assumed to contain asbestos until laboratory testing proves otherwise.

To request information for a particular area please use the "Asbestos Service/Information Request" Form.