Basically Mazbook1 is wrong. It does not have to be turned in EVERY TIME you leave Mexico no matter WHAT it states on the FMM.
"No Alan, you are wrong not Mazbook, if you have a FMM in your wallet read the front above where you filled it out...It states:
This form must be filled out individually by every foreigner entering Mexico,
including diplomatic personal and will turned in upon departure from the country......
It is pretty Black and White to me, if you do not turn it in then you are breaking the law Alan.....I love your line:
It does not have to be turned in EVERY TIME you leave Mexico no matter WHAT it states on the FMM.
No matter what it states on an official Mexican Gov. document...
You gotta be kidding me Alan, guess you are above the law, LOL"
Then why would the Mexican Immigration Officer at the TJ airport tell me the opposite and to not worry IF you are returning to continue your 180 stay?
Then why would the US Immigration Officer tell my wife and I exactly the same thing as the Mexican officer did when on the back of a US B2 180 days visa it states exactly the same thing as the FMM states. You must turn your visa in when leaving the country? They state if you are not leaving the country for the length of the 180 day visa just keep it and it will be valid and you can come and go as you please. You seem to be stuck on a technically that was not in writing on the form but any Immigration Office in Mexico will tell you. It is valid for 180 days, come and go as you please.
What about FMM holders living on the border and crossing every week or so, like me? Do I want to wait in line at the Migra to turn it in and then every time I fly south pay another $227.00 pesos 5 or 6 weeks after I just paid for one. Does a Mexican national want to stand in line for about 90 minutes every Friday night or so when visiting his girlfriend or family living past the free zone? Do I have to or do they have to. No we don't.