Data entry notes:
Adopted at the seventh meeting of the International Whaling Commission. The Amendments entered into force 8 November 1955, except for amendments to paragraph 8(a) and (c) which entered into force , except Canada, Japan, Netherlands, Norway, Panama, South Africa, United Kingdom of Great Britain and Northern Ireland and United States of America, 7 March 1956. List of amendments by year from 1949 through 1974 inclusive available at: http://www.antcrc.utas.edu.au/opor/Treaties/awc-page.html.