The Ministry of Economy sent the Customs Administration Document No. 414.2019.1952, where is stated that the use of a certificate issued under NOM-208 on behalf of someone other than the importer is authorized, below a translation of the first resolution item that you will find in the last page of the attached pdf:
“First: for the purpose of demonstrating compliance with NOM-208-SCFI-2016 on behalf of the customs authority, will be valid the certificates of conformity and / or homologation with respect to the Official Mexican Standard NOM-208-SCFI-2016, NOM-121-SCT1-2009, of the Official Mexican Standard of Emergency NOM-EM-016-SCFI-2015, as well as the certificates of conformity that were issued in accordance with Technical Provision IFT-008-2015, until the end of its validity.
In such cases, it will be accepted that the certificates have been issued to a person other than the importer”.