Barriers Maintenance, Safety Inspections and Repair at Kaiserslautern Military Community (KMC) The contractor shall provide all management, tools, supplies, equipment, parts, labor necessary to mainta... Barriers Maintenance, Safety Inspections and Repair at Kaiserslautern Military Community (KMC) The contractor shall provide all management, tools, supplies, equipment, parts, labor necessary to maintain, repair, and inspect the Vehicle crash-beam, wedge barriers, tire killer, bollards, arm barriers, quick folding and sliding gates.