[Code of Federal Regulations] [Title 14, Volume 4] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR300.17] [Page 272] TITLE 14--AERONAUTICS AND SPACE CHAPTER II--OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) PART 300_RULES OF CONDUCT IN DOT PROCEEDINGS UNDER THIS CHAPTER--Table of Contents Sec. 300.17 Disqualification of partners of DOT employees. No partner of a DOT employee shall act as agent or attorney for anyone other than the United States in any DOT proceeding or matter in which such employee participates or has participated personally and substantially through decision, approval, disapproval, recommendation, rendering advice, investigation, or otherwise, or which is the subject of his or her official responsibility.