33 CFR 116.05 : Navigation And Navigable Waters (§ 1.01-1 To Parts 404-499) — (§ 1.01-1 To Parts 121-124) — Coast Guard, Department Of Homeland Security (§ 1.01-1 To Parts 121-124) — Bridges (§ 114.01 To § 118.160) — Alteration Of Unreasonably Obstructive Bridges (§ 116.01 To § 116.55) — Complaints.

Any person, company, or other entity may submit to the District Commander of the Coast Guard district in which a bridge over a navigable water of the United States is located, a complaint that a bridge unreasonably obstructs navigation. The complaint must be in writing and include specific details to support the allegation.