Règle correspondante
Mexico
Practice Relating to Rule 42. Works and Installations Containing Dangerous Forces
Mexico’s IHL Guidelines (2009), in a section entitled “Basic rules of conduct in armed conflict”, states: “Respect all … objects bearing … signs that protect civilians, buildings and structures, such as dams and dykes, unless you receive orders to the contrary.” 
Mexico, Cartilla de Derecho Internacional Humanitario, Ministry of National Defence, 2009, § 14(h).