SCOPE AND PURPOSE This SAE Technical Information Report provides a compendium of terms@ definitions@ abbreviations@ and acronyms to enable common terminology for use in engineering reports@ diagnostic tools and publications related to active safety systems. This information report is a survey of active safety systems and related terms. The definitions offered are descriptions of functionality rather than technical specifications. Included are warning and momentary intervention systems@ which do not automate any part of the dynamic driving task on a sustained basis like those defined in SAE J3016 Automated Driving Systems.