Environmental Health and Safety

Asbestos Management Plan

Definitions

• Asbestos-Containing Material (ACM) - any material containing more than one percent asbestos.
  
  
• Asbestos-Containing Construction Material (ACCM) - any manufactured construction material that contains more than one tenth of one percent asbestos by weight.
  
  
• Presumed Asbestos-Containing Material (PACM) - thermal system insulation and surfacing material found in buildings constructed no later than 1980. These materials are assumed to contain asbestos unless data rebuts the classification.
  
  
• Friable Asbestos Material - any material containing more than one percent asbestos that, when dry, can be crumbled, pulverized or reduced to a powder by hand pressure.
  
  
• Non-Friable Asbestos-Containing Material - any material containing more than one percent asbestos, that, when dry, cannot be crumbled, pulverized or reduced to a powder by hand pressure.
  
  
• Category I Non-Friable Asbestos-Containing Material - asbestos-containing packings, gaskets, resilient floor covering and asphalt roofing products containing more than one percent asbestos, that, when dry, cannot be crumbled, pulverized or reduced to a powder by hand pressure.
  
  
• Category II Non-Friable Asbestos-Containing Material - any material, excluding Category I Non-Friable Asbestos-Containing Material, containing more than one percent asbestos that, when dry, cannot be crumbled, pulverized or reduced to powder by hand pressure.
  
  
• Regulated Asbestos-Containing Material (RACM) - friable asbestos material; Category I Non-Friable Asbestos-Containing Material that has become friable or will be subjected to sanding, grinding, cutting or abrading; and Category II Non-Friable Asbestos-Containing Material that has a high probability of becoming crumbled, pulverized or reduced to a powder by the forces expected to act on the material in the course of demolition or renovation operations.

These definitions describe the types of asbestos-containing materials that are regulated under California Code of Regulations, Title 8, Sections 341.6 and 1529, and the National Emission Standard for Asbestos as implemented by the Air Pollution Control District, County of San Diego.