https://mexicodailypost.com/2021/10/13/message-to-u-s-citizens-in-mexico-passport-entry-permit-and-or-residency-card-must-be-carried-at-all-times-or-face-inm-detention/
Message to U.S. citizens in Mexico; passport, entry permit, and or residency card must be carried at all times or face INM detention