CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER B—MERCHANT MARINE OFFICERS AND SEAMEN (parts 10 to 16) > PART 12—REQUIREMENTS FOR RATING ENDORSEMENTS > SUBPART 12.13—Persons Designated To Provide Medical Care on Board Ship (§12.13-1 to §12.13-3)