Advance Directive
It is a way allowing a competent person to put in writing his will concerning the treatments he would want or he would not want to receive if he were to find himself in a situation where he could not express his will himself. The advance directive comes into force when the person becomes unable to make those decisions.
Legislation
In Mexico, we already have an Advance Directive Act with its different variations in each State of the Republic and in the City of Mexico. We also add here the law initiatives presented in States still lacking a legislation on this matter.