The purpose of this SAE Recommended Practice is to provide guidelines for instrumentation used in motor vehicle and motor vehicle component impact tests. It is intended to supplement impact test procedures such as those described in SAE J850, J944, J117, etc. The aim is to achieve uniformity in instrumentation practice and in reporting test results, without imposing undue restrictions on the performance characteristics of the individual elements in an instrumentation or data analysis system. Use of this recommended practice will provide a basis for meaningful comparisons of test results from different sources.