Materials or products that contain more than 1.0% asbestos, as determined by EPA methods, are classified as what?

• A. Asbestos Containing Materials (ACM)
• B. Asbestos-Containing Packings
• C. Nonfriable ACM
• D. Friable ACM

Answer: (A)

At the heart of this question is how regulatory definitions categorize materials based on how much asbestos they contain. If a material contains more than the regulatory threshold—1% asbestos as determined by EPA methods—that material is classified as asbestos-containing materials, or ACM. This designation is used to identify substances that require special handling, containment, or removal under asbestos regulations, regardless of whether the material is friable (crumbles easily) or nonfriable (does not crumble easily). The other terms describe more specific forms or contexts (like a particular product type or the physical state) and do not define the general category by percentage content. So, when the asbestos content exceeds 1%, the correct classification is asbestos-containing materials.