Mail your completed Form N-300, and an accompanying documentation, to the USCIS Dallas Lockbox facility at the following address:
PO Box 650809
Dallas, TX 75265
To submit via Express Mail or courier deliveries, use the following address:
Attn: Form N-300
2501 S State Hwy 121 Business
Lewisville, TX 75067
Note on Filing Fee:
Download:US Naturalization Process
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