The L-3 Mine Safety Office (L-3 MSO) is L-3 Communications' lead organization for the exploration and development of mine safety systems. L-3 MSO's current mine safety portfolio includes the ACCOLADE Wireless Mesh Mine Communications System and the ultra wideband (UWB)-based TRU-TRACKER Precision Location System. Both of these programs were originally developed under federally-generated mandates for the purpose of produce systems to enhance the safety of coal mine operations in the United States. In addition, L-3 MSO is also pursuing on-going research into other mine safety areas to help ensure that all miners return home safely at the end of every shift.