The validity of documents issued by institutions or authorities of a certain country is affected by territoriality; this means, for a document that has been issued in a diverse country in which it will be used, its transcendence must be subject to a process of legalization and recognition.

To facilitate such procedure on October 5^th, 1961 in The Hague, The Netherlands, 109 countries joined to form the Apostille Convention (also known as The Hague Convention). This procedure simplifies the legalization of documents by a single procedure called “apostille”, which consists of certifying and ratifying that the signature and seal of a public document were issued by the competent authority within the exercise of its functions and in use of its powers.

When carrying out this procedure, the validity required in a document may be granted to make use of it in another country, in this case Mexico.