<a href="https://bdzlaw.com/nafta-tn-blog/2006/10/18/vsc-establishes-po-boxes-for-specific-case-types.html">VSC Establishes PO Boxes for Specific Case Types</a>
The Vermont Service Center has established Post Office boxes for specific case types. When submitting an I-129 petition for TN and/or TD status, the VSC asks that the following format be used:
Vermont Service Center/USCIS
PO Box 300
St. Albans, VT 05479
From AILA InfoNet Doc. No. 06101340 (posted Oct. 13, 2006).