ABSTRACT
An operation and maintenance (O & M) program is recommended for each type of asbestos-containing materials (ACM): surfacing material, pipe and boiler insulation, and miscellaneous materials. The asbestos program manager develops and implements the special O & M program. ACM that is sprayed or troweled on ceilings and walls is often the main source of airborne asbestos fibers in the building. Areas covered by ACM tend to be large. The special O & M program coordinator should ensure that recommended procedures and safety precautions will be followed before authorizing construction and maintenance work involving surfacing ACM. The special O & M program should continue until all surfacing ACM is removed. Over time, the special O & M program may need to be altered if the ACM is enclosed or encapsulated. Asbestos-containing pipe and boiler insulation typically is a less significant source of airborne asbestos fibers than surfacing ACM.
