Retro-styled (color-coded with chromed buckles) 2-point and 3-point seat (safety) belts are manufactured according to Federal Motor Vehicle Safety Standards (FMVSS). However, most classic car bodies (manufactured before the late 1960s) did not include safety belts as standard equipment, and do not include readily available reinforced mounting points, on the vehicle body, therefore it can be problematic to install such equipment properly: specific studies and calculations should be performed before any attempts.