[Code of Federal Regulations] [Title 46, Volume 7] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR167.01-10] [Page 8] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 167_PUBLIC NAUTICAL SCHOOL SHIPS--Table of Contents Subpart 167.01_General Provisions Sec. 167.01-10 Effective date of regulations. (a) The regulations in this part shall be in effect on and after July 1, 1951: Provided, That amendments, revisions, or additions shall become effective 90 days after the date of publication in the Federal Register unless the Commandant shall fix a different time. (b) Amendments to regulations in this part will not be retroactive in effect unless specifically made so at the time the amendments are issued.