Search Air Quality Web Site
CLEAN AIR MAKE MORE

Definitions

AHERA

Asbestos Hazard Emergency Response Act

Asbestos

means the asbestiform varieties of serpentinite (chrysotile), riebeckite (crocidolite), cummingtonite-grunerite, anthophyllite, and actinolite-tremolite.

Category I (CAT I) nonfriable asbestos

containing material (ACM) - means asbestos-containing packings, gaskets, resilient floor covering, and asphalt roofing products containing more than 1% asbestos as determined using the method specified in using the methods specified in appendix E, subpart E, 40 CFR part 763, section 1, Polarized Light Microscopy.

Category II (CAT II) nonfriable ACM

means any material, excluding Category I nonfriable ACM, containing more than 1% asbestos as determined using the methods specified in using the methods specified in appendix E, subpart E, 40 CFR part 763, section 1, Polarized Light Microscopy that, when dry, cannot be crumbled, pulverized, or reduced to powder by hand pressure.

Demolition

means the wrecking or taking out of any load-supporting structural member of a facility together with any related handling operations or the intentional burning of any facility.

Friable asbestos material means any material containing more than 1 percent asbestos as determined using the method specified in appendix E, subpart E, 40 CFR part 763, section 1, Polarized Light Microscopy, that, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure.

NESHAPs

National Emission Standards for Hazardous Air Pollutants pursuant to 40 CFR part 61, subpart M (1990).

Regulated asbestos-containing material (RACM)

means (a) Friable asbestos material, (b) Category I nonfriable ACM that has become friable, (c) Category I nonfriable ACM that will be or has been subjected to sanding, grinding, cutting, or abrading, or (d) Category II nonfriable ACM that has a high probability of becoming or has become crumbled, pulverized, or reduced to powder by the forces expected to act on the material in the course of demolition or renovation operations.

Renovation

means altering a facility or one or more facility components in any way, including the stripping or removal of regulated asbestos-containing material (RACM) from a facility component. Operations in which load-supporting structural members are wrecked or taken out are demolitions.