This applies to General purpose Industrial Machines@ as described in SAE J1116@ which are equipped with Rollover Protective Structures (ROPS). Purpose - This SAE Standard establishes performance criteria fro Falling Object Protective Structures (FOPS) intended to provided operators of general purpose industrial machines with overhead protection from objects such as bricks@ concrete blocks@ and small hand tools that may fall from heights of not more than 9 m (30 ft) above the ground encountered in operations such as highway maintenance@ landscaping@ and other services on construing sites where the falling object develops an energy not to exceed 1360 J (1000 ft-Ibf).