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As of February 28, 2008, MSHA has observed testing or demonstration of 29 communications and/or tracking systems at various mine sites. We have met with representatives from 61 communications and tracking system companies. To date, we have had discussions with various vendors regarding 166 different proposals for development of mine communications and tracking systems. MSHA is currently focusing its resources on the evaluation of approval applications for communications and tracking technology. Since the beginning of 2006, we have issued 37 new or revised approvals for communications and tracking products. We are currently investigating 48 approval applications for communications and tracking technology. We continue to work with the Communications Partnership Working Group sponsored by the NMA / BCOA to arrange for demonstrations of additional systems.
