Seat belt buckle assemblies together with retractors and buckles as well as front seat belt buckle support assemblies (slide bar) and child seat tether brackets and their installing hardware must be inspected following a collision. Polymer technology in the automotive industry leads to requirements for new seat belt assemblies together with an obligation for qualified technicians to evaluate existing assemblies before installing new ones. The repair process requires new assembly replacement in cases where inspected belt assemblies prove their damage or malfunction after a collision. The inspection of Automatic Locking Retractors (ALR) for all outboard seating positions must be performed by a qualified technician to guarantee seat belt operation especially for the driver seat which lacks ALR capability. A seat belt assembly must be replaced when the "Tell tale label" activates on the lap belt part of the webbing near the lower outboard anchor point due to visible warning text. When
Air Bags deploy during an accident all seat belts used at the time require replacement with new ones to protect occupants and avoid component breakdown.