33 C.F.R. § 117.140 General.
Title 33 - Navigation and Navigable Waters
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.
Title 33: Navigation and Navigable Waters
PART 117—DRAWBRIDGE OPERATION REGULATIONS
Subpart B—Specific Requirements
California
§ 117.140 General.
