(a) The owner of or agency controlling the lock shall not be required to operate the navigation lock except from 5:30 a.m. to 8:00 p.m. daily. During the above hours the lock shall be opened upon demand for the passage of vessels.(b) The owner of the lock shall place signs, of such size and description as may be designated by the District Engineer, U.S. Army Engineer District, Jacksonville, Florida at each side of this lock indicating the nature of the regulations of this section. [Regs., July 17, 1973, 1522-01 (Taylor Creek, Fla.) DAEN-CWO-N]
38 FR 21404, Aug. 8, 1973 Sec. 7, 40 Stat. 266; 33 U.S.C. 1