[Code of Federal Regulations] [Title 46, Volume 1] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR4.03-30] [Page 42] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 4--MARINE CASUALTIES AND INVESTIGATIONS--Table of Contents Subpart 4.03--Definitions Sec. 4.03-30 Investigating officer. An investigating officer is an officer or employee of the Coast Guard designated by the Commandant, District Commander or the Officer in Charge, Marine Inspection, for the purpose of making investigations of marine casualties and accidents or other matters pertaining to the conduct of seamen. An Officer in Charge, Marine Inspection, is an investigating officer without further designation.