This SAE Standard specifies minimum performance and test criteria for brake systems to enable uniform assessment of the braking capability of earth-moving machinery which operates on work sites or travels on public roads. Service, secondary, and parking brake systems, and retarders are covered by this document. This document applies to self-propelled, rubber-tired loaders, tractors, graders, backhoe loaders, tractor-scrapers, excavators, and dumpers as defined in ISO 6165.