Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.401.29 Maximum draft

(i) An operational AIS with accuracy approved by the Seaway;  and

(ii) Up-to-date electronic navigational charts;  and

(iii) Up-to-date charts containing high resolution bathymetric data;  and

(i) Verification document of the DIS must be kept on board the vessel at all times and made available for inspection.

(ii) A company letter attesting to officer training on use of the DIS must be kept on board and made available for inspection.

(iii) Any vessel intending to use the DIS for the first time must notify the Manager of the Corporation in writing at least 24 hours prior to the commencement of its initial transit in the System with the DIS.

(iv) In every navigation season, a vessel intending to use an approved DIS to transit the System must submit a completed confirmation checklist found at www.greatlakes-seaway.com to the Manager or the Corporation prior to its initial transit of the season.

(v) If for any reason the DIS or AIS becomes inoperable, malfunctions or is not used while the vessel is transiting at a draft greater than the maximum permissible draft prescribed under paragraph (b) of this section in effect at the time, the vessel must notify the Manager or the Corporation immediately.