A ship's Medical Doctor is a staff officer and is required to obtain a Certificate of Registry (COR). To obtain a COR requires completing first aid and cardiopulmonary resuscitation (CPR) training within the past 12 months and meeting medical fitness standards. A medical doctor must also hold a valid license as a physician or surgeon issued within the United States. Further information can be found at the United States Coast Guard web site http://www.uscg.mil/stcw/index.htm, http://frwebgate.access.gpo.gov/cgi-bin/get-cfr.cgi?TITLE=46&PART=10&SUBPART=H&TYPE=TEXT, and the Federal Code of Regulations (46CFR10) at http://www.access.gpo.gov/nara/cfr/waisidx_02/46cfr10_02.html.