Guillermo D. Bustosdiaz with Chemical Biological Incident Force, CBIRF, was pinned to the rank of corporal during a promotion ceremony at Naval Support Facility at Indian Head, Md. Dec. 1, 2017. Bustosdiaz works as a motor vehicle operator for the motor transport platoon at CBIRF. (Official USMC photo by Cpl. Maverick Mejia)

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Keywords: cbirf, promotions