USCIS recently issued a new procedure for filing Form I-407, Record of Abandonment of Lawful Permanent Resident Status. As of July 1, 2019, Form I-407 can only be submitted by mail at the USCIS Eastern Forms Center. 

Prior to this change in policy, if an individual decided to voluntarily abandon their status as a lawful permanent resident (LPR), the form could be submitted at an international field office in person or by mail. USCIS noted that processing time at the Eastern Forms Center is anticipated to be 60 days following receipt. In the event that someone needs immediate proof that they have abandoned LPR status, USCIS stressed that “in very rare circumstances” the form will be accepted in person at an international field office, U.S. embassy or U.S. consulate. In other words, be sure to plan ahead if you require proof that you have abandoned your status as an LPR.

As of July 1, 2019, Form I-407 must be sent to USCIS at the following address: USCIS Eastern Forms Center, Attn: I-407 unit, 124 Leroy Road, PO Box 567, Williston, VT 05495. Documents issued by USCIS—including green cards and reentry permits—should be submitted along with the form.  Form I-407 may also still be submitted in person to U.S. Customs and Border Protection (CBP) at a U.S. port of entry. 

More information about filing Form I-407 can be found on the USCIS website.