Norma relacionada
Practice Relating to Rule 35. Hospital and Safety Zones and Neutralized Zones
Mexico’s Army and Air Force Manual (2009), in a section on the 1949 Geneva Convention IV, states:
210. Safety zones
A. It is provided that either before or after the outbreak of hostilities, hospital and safety zones and localities may be established to protect the wounded, sick, disabled, elderly, children under the age of fifteen, expectant mothers and mothers of children under the age of seven. The Protecting Powers and the ICRC are invited to lend their good offices in order to facilitate the setting up and recognition of such zones.
B. If necessary, and when circumstances permit, these zones may be set up in or near places which already benefit from special protection as cultural property.
211. Neutralized zones
They are zones established in fighting areas and intended to shelter from the dangers of war all persons, without distinction, who are not, or no longer, taking part in hostilities, provided that they do not perform any work of a military nature while they remain in these zones. They are established by agreement between the parties concerned on the proposal of the party setting up the zone. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, §§ 210–211.