Operating Maintenance

Work needed to preserve asset components to allow their continued use. This definition encompasses any actions intended to prevent failure or inefficient operation, and includes housekeeping and custodial work. Operating maintenance expenditures are generally done under the O&M budget. Operating Maintenance does not necessarily prolong the design service life of the property of equipment, nor does it add to the asset's value. However, lack of maintenance can reduce an asset's value by leading to equipment breakdown, premature failure of a building's subsystems and shortening of the asset's useful service lifetime.