Regulatory Framework: NESHAP, AHERA, OSHA, and Related Requirements
Candidates must keep three regulatory pillars distinct, because exam questions routinely test which rule applies to which setting and party.
NESHAP (National Emission Standards for Hazardous Air Pollutants, 40 CFR Part 61, Subpart M) is an environmental/air rule that governs demolition and renovation of facilities. It defines a facility as a building or structure; regulated asbestos-containing material (RACM) includes friable asbestos material and material that will become friable during handling. Key triggers: notification to the delegated air agency before demolition and before regulated renovation, and work-practice standards (wetting, sealing, no visible emissions). AHERA (Asbestos Hazard Emergency Response Act, 40 CFR Part 763, Subpart E) is a schools rule: it requires inspections by accredited inspectors, management plans, periodic re-inspection, and response actions in local education agencies. It is the source of the accreditation framework (inspector, management planner, project designer, contractor/supervisor, worker) that many state programs adopt more broadly.
OSHA (29 CFR 1926.1101 for construction; 1910.1001 for general industry) is a worker-protection rule. It sets permissible exposure limits (0.1 f/cc 8-hour TWA; 1.0 f/cc excursion), classification of work, exposure monitoring, regulated areas, respiratory protection, training, medical surveillance, and competent-person duties. Traps: mixing up NESHAP's RACM threshold concepts with OSHA's PEL; assuming AHERA applies to all commercial buildings (it does not); and forgetting state and local rules can be stricter than federal.
Rule of thumb: NESHAP = will it be demolished/renovated and does it emit? AHERA = is it a school? OSHA = who is doing the work and what are they breathing?