Establish performance requirements of an automatically deployable protective structure for ride-on turf & landscape equipment. Applies to the installation of an automatically deployable protective structure for ride on turf & landscape equipment as defined in ANSI/ASAE S323.2 Does not apply to recreational machines, OHUV, agricultural tractors, or ATV recreational vehicles. Specifies design & testing requirements for the installation of automatically deploying roll over protective structures (AD-ROPS). Performance requirements for the fully extended ROPS are not included in this standard.