MIL-PRF-32558 defines the technical design restrictions and capabilities of the VBDR, which includes environmental considerations, electrical power and backup power criteria, event triggering and data collection capabilities, system status indicators, and bridge sensor requirements. The VBDR is a stand alone system not intended to interface with other vehicle systems. Analysis of collected data can be used to improve vehicle design, enhance occupant protection, reconstruct blast or other events, or for other purposes. This specification covers all U.S. Army military vehicle blast sensing and blast data recording systems. The intent of the requirements stated in this document are to generate standards to ensure adequate data is recorded, system functionality is maximized, and interoperability is maximized.