Where can supplemental information on vessel dimensions for the St. Lawrence Seaway be found?

Supplemental information on vessel dimensions for the St. Lawrence Seaway can be found in Seaway Notices because these documents are specifically designed to provide essential updates and information relevant to vessels operating in the seaway. Seaway Notices often include important details such as current restrictions, changes in procedures, and critical dimensions necessary for safe navigation.

The Seaway Handbook provides a comprehensive overview of the operations and regulations of the seaway, but it may not specifically update vessel dimensions as frequently as Seaway Notices. 33 CFR 401 Chapters 2 and 3 comprise the Code of Federal Regulations concerning navigation and vessel documentation; however, they generally contain broader regulatory requirements rather than the specific supplemental information on vessel dimensions that one would expect to find in more immediate communications like Seaway Notices.