6 Month Rule [ EASY ✔ ]

For U.S. Lawful Permanent Residents (Green Card holders), the "6 month rule" refers to travel outside the United States.

Some regions, like the Schengen Area , generally require only three months of validity beyond your planned departure date. Permanent Residency (Immigration) 6 Month Rule

The U.S. has agreements with over 100 countries (the " Six-Month Club ") that waive this requirement. For citizens of these countries, a passport only needs to be valid for the duration of their intended stay. like the Schengen Area

Six-Month Validity Update - U.S. Customs and Border Protection 6 Month Rule

Airlines often enforce this rule strictly because they can be fined for transporting passengers who do not meet entry criteria.