On April 27, 2018, U.S. Citizenship and Immigration Services (USCIS) announced that the agency will begin phasing in use of the U.S. Postal Service’s (USPS) Signature Confirmation Restricted Delivery service to mail Green Cards and other secure documents beginning April 30, 2018.
The first phase will affect documents that need to be re-mailed because they have been returned as non-deliverable. These documents include Permanent Resident Cards (also called Green Cards), Employment Authorization Cards, and Travel Booklets. Applicants who have changed mailing addresses during the course of the application process are more likely to have their secure documents sent with the new delivery method, which USCIS will expand to all secure documents in the future.
As part of the new delivery method, applicants must present identification to sign for their documents upon delivery.