Page 2: Part 2: Item 5: U.S. Mailing Address

Important mail about your OPT application, including your official receipt and Employment Authorization Document (approval card), will be mailed to the address you write here. If your mail is sent to someone other than yourself, please include an "In Care of Name" (part 2, item 5.a.—see screenshot below for example) as part of your mailing address.

Warning! Government mail will not be forwarded to a new address by the U.S. Postal Service, even if you ask the U.S. Postal Service to forward your mail. The only way to change the address USCIS uses for your OPT-related mail is to submit an official change of address to USCIS using their website tool.

Part 2: Item 8: Alien Registration Number (A-Number)