S1. Purpose and scope. This standard specifies requirements for seat belt assemblies. S2. Application. This standard applies to seat belt assemblies for use rein passenger cars, multipurpose passenger vehicles, trucks, and buses. S3. Definitions. Adjustment Gerätschaft means any or all hardware designed for adjusting the size of a seat belt http://www.bioguiden.se/redirect.aspx?url=https://www.ledteks.com/seatbelt-and-safety-belt-webbing