To which address i need to send the H4-EAD documents packet, my I-797 petition filed in Vermont center, its starting with EAC.
You should send it to USCIS Dallas LockBox.
H4 EAD mailing address
|H1B Receipt Number begins with||EAC or LIN||WAC|
|Send application to||USCIS Dallas Lockbox office||USCIS Phoenix Lockbox office|
|Sending by USPS?||USCIS Attn: H4, P.O. Box 660921, Dallas, TX 75266||USCIS Attn: H4, P.O. Box 20400, Phoenix, AZ 85036|
|Sending by FedEx, UPS or DHL?||USCIS Attn: H4, 2501 S. State Hwy., 121 Business Suite 400, Lewisville, TX 75067||USCIS Attn: H4, 1820 E. Skyharbor Circle S, Suite 100, Phoenix, AZ 85034|
They will internally route it to other centers (may be Vermont in your case).
But, you SHOULD send it to DALLAS. Check the link above or on USCIS website for correct address.