For example, if you have myasthenia gravis, you may notice that during a meal, your jaw muscles become tired and weak, interfering with your ability to chew food. After you have rested for a little while, the muscles may become strong again, allowing you to resume eating.
Reentry Permits. If you hold a green card and know in advance that you must be outside the United States for more than one year, it's worth applying to USCIS for a reentry permit. This lets you to stay away for up to two years. See â Reentry Permits: Preparing Green Card Holders for Long Absences from the U.S. â.
USCIS has discussed implementing a rule requiring permanent residents to replace green cards that lack expiration dates, but no such rule has been implemented to date. While more recent versions of the green card expire every ten years, valid green cards issued in the 1970âs and 1980âs may not have an expiration date. Older green cards with no expiration dates can create other problems for travelers.