ICRC databases on international humanitarian law
Treaties and Documents
1949 Conventions and Additional Protocols, and their Commentaries
Historical Treaties and Documents
Convention for the Amelioration of the Condition of the Wounded and Sick in Armies in the Field. Geneva, 27 July 1929.
Final provisions - Art. 37.
Art. 37. A state of war shall give immediate effect to ratifications deposited and accessions notified by the belligerent Powers before or after the outbreak of hostilities. The communication of ratifications or accessions received from Powers in a state of war shall be made by the Swiss federal Council by the quickest method.