46 CFR § 69.7
Vessels transiting the Panama and Suez Canals
April 15, 2021
For vessels that will transit the Panama Canal and/or Suez Canal, the respective canal authorities may require special tonnage certificates in addition to those issued under this part. These special certificates may be issued by measurement organizations who have received appropriate authorization from the respective canal authorities.
[USCG-2011-0522, 81 FR 18718, Mar. 31, 2016]