I am a UK passport holder currently living in Canada. I recently visited Alaska and travelled via air and was issued an electronic I94. The I94 website shows that my I94 has an admit until date that's valid for another 2 months.
Now I'm looking to enter the US via a land border (rail). Last time I did this trip I was issued a paper I94 which I returned to the CBSA officer upon my re-entry to Canada.
I have a couple of questions:
- Is my electronic I94 still valid for entry via a land border?
- If I use my electronic I94 for entry, how do I prove that I have exited the USA if there is no record of my departure?