U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 33Chapter IVPart 401-SEAWAYSubpart A - Subpart A-Regulations

CONDITION OF VESSELS
§ 401.3 - Maximum vessel dimensions.
§ 401.4 - Maximum length and weight.
§ 401.5 - Required equipment.
§ 401.6 - Markings.
§ 401.7 - Fenders.
§ 401.8 - Landing booms.
§ 401.9 - Radio telephone and navigation equipment.
§ 401.10 - Mooring lines.
§ 401.11 - Fairleads.
§ 401.12 - Minimum requirements-mooring lines and fairleads.
§ 401.13 - Hand lines.
§ 401.14 - Anchors, anchor marking buoys.
§ 401.15 - Stern anchors.
§ 401.16 - Propeller direction alarms.
§ 401.17 - Pitch indicators and alarms.
§ 401.18 - Steering lights.
§ 401.19 - Disposal and discharge systems.
§ 401.20 - Automatic Identification System.
§ 401.21 - Requirements for U.S. waters of the St. Lawrence Seaway.
§ 401.1 - Short title.
§ 401.2 - Interpretation.

PRECLEARANCE AND SECURITY FOR TOLLS
§ 401.22 - Preclearance of vessels.
§ 401.23 - Liability insurance.
§ 401.24 - Application for preclearance.
§ 401.25 - Approval of preclearance.
§ 401.26 - Security for tolls.

SEAWAY NAVIGATION
§ 401.27 - Compliance with instructions.
§ 401.28 - Speed limits.
§ 401.29 - Maximum draft.
§ 401.30 - Ballast water and trim.
§ 401.31 - Meeting and passing.
§ 401.32 - Cargo booms-deck cargo.
§ 401.33 - Special instructions.
§ 401.34 - Vessels in tow.
§ 401.35 - Navigation underway.
§ 401.36 - Order of passing through.
§ 401.37 - Mooring at tie-up walls.
§ 401.38 - Limit of approach to a lock.
§ 401.39 - Preparing mooring lines for passing through.
§ 401.39-1 - Raising fenders.
§ 401.40 - Entering, exiting or position in lock.
§ 401.41 - Tandem lockage.
§ 401.42 - Passing hand lines.
§ 401.43 - Mooring table.
§ 401.44 - Mooring in locks.
§ 401.45 - Emergency procedure.
§ 401.46 - Attending lines.
§ 401.47 - Leaving a lock.
§ 401.48 - Turning basins.
§ 401.49 - Dropping anchor or tying to canal bank.
§ 401.50 - Anchorage areas.
§ 401.51 - Signaling approach to a bridge.
§ 401.52 - Limit of approach to a bridge.
§ 401.53 - Obstructing navigation.
§ 401.54 - Interference with navigation aids.
§ 401.55 - Searchlights.
§ 401.56 - Damaging or defacing Seaway property.
§ 401.57 - Disembarking or boarding.
§ 401.58 - Pleasure craft scheduling.
§ 401.59 - Pollution.

RADIO COMMUNICATIONS
§ 401.60 - Listening watch and notice of arrival.
§ 401.61 - Assigned frequencies.
§ 401.62 - Seaway stations.
§ 401.63 - Radio procedures.
§ 401.64 - Calling in.
§ 401.65 - Communication-ports, docks and anchorages.

DANGEROUS CARGO
§ 401.66 - Applicable laws.
§ 401.67 - Carrying explosives.
§ 401.68 - Explosives permission letter.
§ 401.69 - Hazardous cargo vessels.
§ 401.70 - Fendering-explosive and hazardous cargo vessels.
§ 401.71 - Signals-explosive or hazardous cargo vessels.
§ 401.72 - Reporting-explosive and hazardous cargo vessels.
§ 401.73 - Cleaning tanks-hazardous cargo vessels.

TOLL ASSESSMENT AND PAYMENT
§ 401.74 - Transit declaration.
§ 401.75 - Payment of tolls.
§ 401.76 - In-transit cargo.
§ 401.77 -

INFORMATION AND REPORTS
§ 401.78 - Required information.
§ 401.79 - Advance notice of arrival, vessels requiring inspection.
§ 401.80 - Reporting dangerous cargo.
§ 401.81 - Reporting an accident.
§ 401.82 - Reporting mast height.
§ 401.83 - Reporting position at anchor, wharf, etc.
§ 401.84 - Reporting of impairment or other hazard by vessels transiting within the Seaway.
§ 401.85 - Reporting of impairment or other hazard by vessels intending to transit the Seaway.

DETENTION AND SALE
§ 401.86 - Security for damages or injury.
§ 401.87 - Detention for toll arrears or violations.
§ 401.88 - Power of sale for toll arrears.

GENERAL
§ 401.89 - Transit refused.
§ 401.90 - Boarding for inspections.
§ 401.91 - Removal of obstructions.
§ 401.92 - Wintering and laying-up.
§ 401.93 - Access to Seaway property.
§ 401.94 - Keeping copies of documents.
§ 401.95 - Compliance with regulations.

NAVIGATION CLOSING PROCEDURES
§ 401.96 - Definitions.
§ 401.97 - Closing procedures and ice navigation.
Appendix - Schedule I to Subpart A of Part 401-Vessels Transiting U.S. Waters
Appendix - Schedule II to Subpart A of Part 401-Table of Speeds 1
Appendix - Schedule III to Subpart A of Part 401-Calling-in Table
Appendix Appendix I - Appendix I to Subpart A of Part 401-Vessel Dimensions
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