Asbestos NESHAP (Subpart M)

40 CFR Part 61, Subpart M (esp. 40 CFR 61.145, 61.150)

Sets Clean Air Act (Section 112) work-practice standards for asbestos during demolition and renovation of facilities (which exclude residential structures of four or fewer dwelling units). Before work, the owner or operator must thoroughly inspect the affected facility for asbestos and provide the regulatory agency advance written notice (generally at least 10 working days before stripping or removal begins). When the regulated asbestos-containing material meets or exceeds the thresholds of at least 260 linear feet on pipes, 160 square feet on other facility components, or 35 cubic feet where length or area cannot be measured, the material must be kept adequately wet during removal and sealed leak-tight for disposal.