A travel signature is used to enter the US and is valid for:
- One year (1 year) from the date of issue except in the following circumstances:
- If you are entering the US from Canada, Mexico, or other US bordering territories, your travel signature should be less than 6 months old when you enter the US
- If you are on post-completion or STEM extension Option Practical Training (OPT), your travel signature should be less than 6 months old when you enter the US
- If you plan to apply for a new F-1 visa stamp while you are traveling, your travel signature should be obtained just before you travel and you should speak to your International Student Adviser about your plan
A travel signature is only valid for admission to the United States only if presented with a valid F-1 visa and passport