Roll over protection structure

Roll Over Protection Structure (ROPS) refers to operator compartment structures (usually cabs or frames) intended to protect equipment operators and motorists from injuries caused by vehicle overturns or rollovers.

Commonly found on heavy equipment (i.e. tractors), earthmoving machinery and UTVs used in construction, agriculture and mining, ROPS structures are defined by various regulatory agencies, including the US Occupational Safety and Health Administration (OSHA). The regulations include both a strength requirement as well as an energy absorption requirement of the structure. Some dump trucks add a protrusion to their boxes that cover the operators compartment for ROPS purposes.