What is the purpose of clearance sampling results in asbestos projects?

• A. Waste manifests
• B. ECPs
• C. Exposure monitoring data
• D. Clearance sampling results

Answer: (D)

Clearance sampling is performed to confirm that the work area has been cleaned to the required level after asbestos abatement. The data from those samples are compared to predefined clearance criteria; if the results meet the criteria, the space is considered safe to reoccupy and the project can be closed out. These results provide the official documentation regulators and clients need to verify compliance. In contrast, waste manifests track disposal of asbestos-containing waste, ECPs describe how exposure controls are implemented during work, and exposure monitoring data show worker exposure during the project.