Heading North

I will need to be travelling to the US in the near future, and it will be my first time doing so as a residente permanente.

I understand there is a "checkout" procedure where you have to visit an immigration office and fill out a form prior to leaving Mexico.

Has anyone been through this recently? Particularly at CBX? The time I've gone through there on FMMs, nobody has ever checked anything on the Mexican side. As I recall, there isn't even a place for a checkpoint for people leaving Mexico. Not sure where I would go to take care of that.

Any information that will help me not screw up and / or not look like a moron is much appreciated.

This is a real thorny issue along the Tijuana/San Diego border. Tens of thousands of people cross back and forth every day. Very few people leaving Tijuana are ever stopped to ask about their Mexican tourist, temporary, or permanent immigration documents. Often, no one is at the Mexican immigration checkpoints. If you fly into Tijuana, the immigration checkpoint is located just after the security gate leaving the airport gate facility and is just before the baggage area. The CBX is at the far end of the baggage area. I don't think there is any immigration checkpoint in the CBX tunnel as you leave the Tijuana airport. If you don't see anyone at the immigration checkpoint as you leave the secured area of the airport, then you best stop and get someone's attention. Buena Suerte!

Idea: Maybe you want to talk to the folks at the Zihua airport before boarding?