Environmental

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Asbestos

Federal

40CFR61.157 Appendix A to Subpart M - Applicability of the Asbestos NESHAP

Asbestos-containing material (ACM) is material containing more than one percent asbestos... The National Emissions Standards for Hazardous Air Pollutants (NESHAP) classifies ACM as either "friable" or "nonfriable". Friable ACM is ACM that, when dry, can be crumbled, pulverized or reduced to powder by hand pressure. Nonfriable ACM is ACM that, when dry, cannot be crumbled, pulverized or reduced to powder by hand pressure.

29CFR1926.1101 Asbestos

Asbestos Work Classifications
The most potentially hazardous class of asbestos jobs. This work involves the removal of asbestos-containing thermal system insulation (TSI) and sprayed-on or troweled-on surfacing materials, including presumed ACM (PACM) insulation and surfacing. Thermal system insulation includes ACM applied to pipes, boilers, tanks, ducts, or other structural components to prevent heat loss or gain. Surfacing materials include decorative plaster on ceilings and walls; acoustical materials on decking, walls, and ceilings; and fireproofing on structural members.

Includes the removal of other types of ACM that are not thermal system insulation such as resilient flooring and roofing materials. Examples of Class II work include removal of asbestos-containing floor or ceiling tiles, siding, roofing, or transite panels.

Includes repair and maintenance operations where ACM or PACM are disturbed.

Includes custodial activities where employees clean up asbestos-containing waste and debris produced by construction, maintenance, or repair activities. This work involves cleaning dust-contaminated surfaces, vacuuming contaminated carpets, mopping floors, and cleaning up ACM or PACM from thermal system insulation or surfacing material.

OSHA

29CFR1910.1001: Asbestos
29CFR1926.1101: Asbestos in Construction Standard
OSHA 3096: Asbestos Standard for the Construction Industry
Asbestos Advisor 2.0