S4.4, S4.5SVEHICLE PROTECTIVE BARRIERSS4.4 A barrier to provide protection from vehicles must be provided at the edge of a drop in level in everyfloor, roof or ramp which is accessible to vehicles, and forms part of a building.S4.5*A vehicle protective barrier provided in accordance with S4.4 must be capable of resisting appropriateloads and be of a height at least that given in the table to this standard -Table to S4.5:Height of vehicle protective barriersLocationMinimum height (mm)Floor or roof edge400Ramp edge600Amdt: December 1999 17S