The U.S. Embassy Brussels does not accept submissions of I-407 Record for Voluntary Abandonment of Lawful Permanent Resident Status.
Since July 1, 2019, USCIS does no longer accept Form I-407, Record of Abandonment of Lawful Permanent Resident Status, at international field offices by mail or in person.
Individuals who wish to voluntarily record abandonment of their lawful permanent resident (LPR) status must submit Form I-407 via mail to:
USCIS Eastern Forms Center
Attn: I-407 unit
124 Leroy Road
PO Box 567
Williston, VT 05495
For more information, please visit : https://www.uscis.gov/i-407