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CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER J—BRIDGES (parts 114 to 118) > PART 117—DRAWBRIDGE OPERATION REGULATIONS > SUBPART B—Specific Requirements (§117.51 to §117.1107) > 117.140—General.
117.140—General.
In California, when fog prevails by day or night, the drawtender, after sounding the opening signal, shall toll a bell continuously during the approach and passage of a vessel.