How often must a visual assessment of friable materials take place according to AHERA?

According to the Asbestos Hazard Emergency Response Act (AHERA), a visual assessment of friable materials must take place every six months. This frequency is mandated to ensure that any potential deterioration or disturbance of friable asbestos-containing materials is monitored regularly. Friable materials are those that can be crumbled or reduced to powder by hand pressure, and their condition can significantly impact the exposure risks associated with asbestos in a facility.

The semi-annual requirement helps in identifying any issues that may arise between more extensive inspections, allowing for timely intervention to protect the health of occupants and workers. Monitoring every six months strikes a balance between maintaining safety and managing costs effectively, ensuring that the presence and condition of friable asbestos are adequately overseen.