Fabric
Fabric means any woven, knitted, plaited, braided, felted, or non-woven material made of filaments, fibers, or yarns including thread. This term includes material made of fiberglass, natural fibers, synthetic fibers, or composite.
Source
40 CFR § 63.4371
Scoping language
Terms used in this subpart are defined in the CAA, in 40 CFR 63.2, and in this section as follows: