The law enforcement agency that protects federal buildings has wasted $2.5 million a year by maintaining more fleets vehicles than officers and adding bicycle racks to its SUVs, an Office of Inspector General audit has found.

The Federal Protective Service (FPS) counted 101 more vehicles than officers in 2014 and hasn't justified its need for its fleet of 1,169 vehicles that cost $10.7 million to lease. The agency leases the vehicles through an agreement with the General Services Administration. The agency is spending about $9,500 per year in annual leasing charges.

The Department of Homeland Security and National Protection and Programs Directorate oversee the FPS fleet.

The agency didn't justify more vehicle than officers, administrative vehicle use, larger SUVs, home-to-work miles in one region, and discretionary equipment added to vehicles, the audit found. The agency didn't maintain operating procedures for fleet management, a sound vehicle allocation methodology or accurate fleet data to make effective management decisions.

By getting rid of its spare vehicles, the agency could save $1.07 million a year, the audit found. The agency couldn't provide "adequate justification" for 32 spare administrative vehicles that cost $3,500 each.

The agency agreed with the audit's findings and has implemented a corrective action plan.

Read the full audit here.