[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: 46CFR5.31] [Page 55] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 5--MARINE INVESTIGATION REGULATIONS--PERSONNEL ACTION--Table of Contents Subpart B--Definitions Sec. 5.31 Incompetence. Incompetence is the inability on the part of a person to perform required duties, whether due to professional deficiencies, physical disability, mental incapacity, or any combination thereof.