Asbestos Contractor/Supervisor Practice Exam

Materials containing more than what percentage of asbestos are classified as asbestos-containing materials?

1. 0.25%

2. 1%

3. 5%

4. 10%

The correct answer is: 1%

Materials containing more than 1% asbestos are classified as asbestos-containing materials (ACMs). This threshold is established to ensure that even small amounts of asbestos, which can pose significant health risks, are appropriately acknowledged and controlled. The 1% threshold is widely accepted in various regulations and guidelines, including those from the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA). By recognizing materials with more than 1% asbestos as ACMs, regulatory bodies aim to implement necessary safety precautions and remediation efforts to protect workers, building occupants, and the general public from the dangers associated with asbestos exposure, which can lead to serious health issues such as asbestosis, mesothelioma, and lung cancer. Understanding this classification is crucial for professionals in the asbestos industry, as it guides the training on handling, removal, and disposal of materials containing asbestos to maintain safety and compliance with legal requirements.