Asbestos
Asbestos means the asbestiform varieties of serpentinite , riebeckite (crocidolite), cummingtonite-grunerite, anthophyllite, and actinolite-tremolite.
Source
40 CFR § 61.141
Scoping language
All terms that are used in this subpart and are not defined below are given the same meaning as in the Act and in subpart A of this part.