Class III work classification involves which of the following?

Class III work classification pertains specifically to activities involving the maintenance and repair of buildings where materials containing asbestos may be disturbed. This classification is particularly significant because it addresses work that is likely to release asbestos fibers into the air, thereby posing a risk to health.

Disturbing thermal system insulation (TSI), which often contains asbestos, is a key factor in Class III work. Activities may include tasks such as cutting, grinding, or drilling into these materials, which directly impacts how asbestos might be released. Proper training and adherence to safety protocols are crucial to mitigate exposure during such operations.

The other possible activities listed in the options either pertain to different classifications or involve situations that fall outside the specific scope of Class III work. Emergency response actions are typically managed under different classifications due to their urgent nature and the procedures involved. General maintenance of buildings can encompass a wide variety of tasks that may or may not involve asbestos, and typically require a broader scope than Class III. Demolition of facilities generally encompasses more substantial work requiring a Class I or II classification depending on the extent and type of asbestos present.