This SAE Recommended Practice establishes minimum performance and test requirements for combination pelvic and upper torso occupant restraint systems provided for off-road self-propelled work machines.
Revision of this document to a surface vehicle recommended practice including updates for external document references to industry accepted ISO standards. Additional details were added to incorporate the current state of the art for restraint systems including retractor and latch plate specific requirements. Anchorage test requirements were updated to accommodate testing equipment. Center of gravity testing was added for seating systems with mass in excess of 70 kg.