Footnote: The alphabetical reference letters in the above
format are from “General principles for ship reporting systems
and ship reporting requirements, including guidelines for reporting
incidents involving dangerous goods, harmful substances and/or marine
pollutants” adopted by the International Maritime Organization
by resolution A.851(20). The letters
do not follow the complete alphabetical sequence as certain letters
are used to designate information required for other standard reporting
formats, e.g., those used to transmit route information.