Demolition Practices Under the Asbestos Standards of NESHAP (National Emissions Standards for Hazardous Air Pollutants)

EPA revised the asbestos regulations of the NESHAP on November 20, 1990. Although these standards have not been revised to alter its applicability to friable and nonfriable asbestos-containing materials (ACM), nonfriable asbestos materials are now classified as either Category I or Category II material

Category I

Category I material is defined as asbestos-containing resilient floor covering, asphalt roofing products, packings and gaskets. Asbestos-containing mastic is also considered a Category I material.

Category II

Category II material is defined as all remaining types of non-friable ACM not included in Category I that, when dry, cannot be crumbled, pulverized, or reduced to powder by hand pressure. Nonfriable asbestos-cement products such as transite are an example of Category II material.

Courtesy of The EPA