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.
Chapter VI : The distinctive emblem - Art. 20.
Art. 20. The emblem shall figure on the flags, armlets, and on all material belonging to the medical service, with the permission of the competent military authority.