33 CFR § 117.5
When the drawbridge must open
August 2, 2023
§ 117.5 When the drawbridge must open.
Except as otherwise authorized or required by this part, drawbridges must open promptly and fully for the passage of vessels when a request or signal to open is given in accordance with this subpart.
[USCG–2001–10881, 71 FR 70308, Dec. 4, 2006]