Training custodial and maintenance workers is one of the keys to a successful operations and maintenance (O&M) program. If building owners do not emphasize the importance of well-trained custodial and maintenance personnel, asbestos O&M tasks may not be performed properly. This could result in higher levels of asbestos fibers in the building air and an increased risk to building workers and occupants. Asbestos Awareness Training includes topics related to the O&M program for buildings. This training is for maintenance and custodial workers involved in general maintenance and asbestos-containing material repair tasks. Training may include such topics as Background information on asbestos, Health effects of asbestos, Worker protection programs, Locations of ACM in the building, Recognition of ACM damage and deterioration, and the O&M program for the building.