What is NOM (Norma Oficial Mexicana)? Mexico regulatory standards that manufacturers meet to protect the safety of medical device, IVD, and pharmaceutical users. Mexico COFEPRIS invalidated the standard NOM-137-SSA1-2008 on medical device labeling published in December 2008, and announced an updated new NOM for medical device labeling, NOM-137-SSA1-2024, on April 23, 2024. Updated NOM-137-SSA1-2..