Posted: Wed Apr 09, 2008 2:04 pm-
When I applied for my SSN, I went to the local office with my passport (
TN visa stapled inside), and lease agreement to confirm a U.S. address. At that time, the clerk told me it takes about 10 days after your TN is issued at the border for you to 'appear' in their system, my SSN arrived in the mail quick from that point, though.
For my employer, they had me fill out the tax form and I-9 and attached a copy of my passport ID and visa for their I-9 compliance records.