Document that confirms that a specific product meets the specifications established in the corresponding NOM and whose validity is subject to the monitoring or surveillance indicated in the certification scheme or modality.

Document addressed to a specific customs office, through which QLSTANDARD authorizes the release of product samples so that they can be subjected to laboratory tests for the purpose of product certification.

Document through which QLSTANDARD rules whether a product is exempt from complying with a specific NOM or if it is within the field of application of the NOM and requires a certificate of conformity.

​Document through which the certification holder extends the ownership of his certificate in favor of one or more of his distributors, marketers or importers.