AHERA Regulatory Framework and the Asbestos-Containing Materials in Schools Rule (40 CFR Part 763, Subpart E)
The architecture of Subpart E
The Asbestos-Containing Materials in Schools Rule (40 CFR Part 763, Subpart E) is the core regulation for school inspections. It implements the Asbestos School Hazard Detection and Control Act and Title II of AHERA (the Asbestos Hazard Emergency Response Act, 15 U.S.C. 2641 et seq.). Know the key definitions cold: asbestos-containing material (ACM) is material containing more than 1 percent asbestos by weight; friable means it can be crumbled, pulverized, or reduced to powder by hand pressure when dry; functional space and homogeneous area drive sampling strategy.
Who must do what
Local education agencies (LEAs) must inspect all school buildings they lease, own, or otherwise use as a school, and must re-inspect at least once every three years. Inspections must be performed by an accredited inspector; assessments of condition can be done by an accredited management planner. The LEA must develop a management plan, make it available for public inspection, and provide annual notification to parents, teachers, and employee organizations.
Traps to watch
- The triennial reinspection is distinct from the six-month periodic surveillance of previously identified ACBM.
- Sampling requirements: at least 3 samples for surfacing material, at least 3 for thermal system insulation, and at least 2 for miscellaneous material in a homogeneous area. Question writers love testing these numbers.
- "More than 1 percent" - not "1 percent or more."
- The rule covers both friable and nonfriable ACBM, contrary to the common misconception that only friable material matters.
Rule of thumb
When a stem asks "how many samples," recall the mnemonic 3-3-2 (surfacing, TSI, miscellaneous).