[Code of Federal Regulations] [Title 33, Volume 3] [Revised as of July 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR401.40] [Page 606] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER IV--SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION PART 401--SEAWAY REGULATIONS AND RULES--Table of Contents Subpart A--Regulations Sec. 401.40 Entering a lock. (a) No vessel shall proceed into a lock in such a manner that the stem passes the stop symbol on the lock wall nearest the closed gates. (b) Every vessel proceeding into a lock shall be positioned and moored as directed by the officer in charge of the mooring operation. (c) No vessel shall use thrusters when passing a lock gate. (68 Stat. 93-96, 33 U.S.C. 981-990, as amended and secs. 4, 5, 6, 7, 8, 12 and 13 of sec. 2 of Pub. L. 95-474, 92 Stat. 1471) [45 FR 52378, Aug. 7, 1980, and 47 FR 51122, Nov. 12, 1982, as amended at 48 FR 20691, May 9, 1983]