The term Coast Guard District Commander or District Commander means an officer of the Coast Guard designated as such by the Commandant to command all Coast Guard activities within his district, which include the inspections, enforcement, and administration of Subtitle II, Title 46, U.S. Code, Title 46 and Title 33 U.S. Code, and regulations under these statutes. [CGFR 68-82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 95-028, 62 FR 51200, Sept. 30, 1997]