Apostille or consular legalisation?
Documents issued in one country and used in another need an apostille when both are parties to the 1961 Hague Apostille Convention. Otherwise they need full consular legalisation.
Document issued in
Document will be used in
Apostille is enough
Both countries are parties to the Apostille Convention. Get the apostille from the competent authority in United States.
United States: Party since 1981-10-15 · Mexico: Party since 1995-08-14
Source: HCCH status table