Subpart A. Subpart A—General Requirements
- § 117.1 - Purpose.
- § 117.4 - Definitions.
- § 117.5 - When the drawbridge must open.
- § 117.7 - General requirements of drawbridge owners.
- § 117.8 - Permanent changes to drawbridge operation.
- § 117.9 - Delaying opening of a draw.
- § 117.11 - Unnecessary opening of the draw.
- § 117.15 - Signals.
- § 117.17 - Signalling for contiguous drawbridges.
- § 117.19 - Signalling when two or more vessels are approaching a drawbridge.
- § 117.21 - Signalling for an opened drawbridge.
- § 117.23 - Installation of radiotelephones.
- § 117.24 - Radiotelephone installation identification.
- § 117.31 - Drawbridge operations for emergency vehicles and emergency vessels.
- § 117.33 - Closure of draw for natural disasters or civil disorders.
- § 117.35 - Temporary change to a drawbridge operating schedule.
- § 117.36 - Closure of drawbridge for emergency repair.
- § 117.39 - Authorized closure of drawbridge due to infrequent requests for openings.
- § 117.40 - Advance notice for drawbridge opening.
- § 117.41 - Maintaining drawbridges in the fully open position.
- § 117.42 - Remotely operated and automated drawbridges.
- § 117.47 - Clearance gauges.
- § 117.49 - Process of violations.