Originally Posted by
Marambio
The minimum validity rule in Argentina is that your passport should not expire while you are in the country -- e.g.: if you plan to stay for 30 days, your passport must expire on day 31.
If your passport has more than 3 months left before expiration date, you will most likely be given a 90-day stay permit.
I've been given a 90 day tourist visa even when my passport would expire during that period (I had a return flight 3 weeks after entry though).