According to the Mexican copyright law (23-07-2003), Article 14, case 7 & 8: "Copyright shall not apply to shields, flags or emblems of any country, state, municipality or political division; names, acronyms, symbols or emblems of international governmental organisations, or any other organization officially recognized; or legislative, regulatory, administrative or judicial texts, as well as their official translations."
Hence it is assumed that this image has been released into the public domain.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
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