Mailing labels are a required part of the employment visa application.
You are required to provide a mailing label "to" USCIS. You are strongly encouraged to provide a mailing label to "return" approval notices from USCIS. You should use FedEx which provides drop boxes on the Stanford campus.
You must provide electronically-generated, pre-printed, pre-paid mailing labels that you create using your account as the billing account.
U. S. Citizenship and Immigration Services
California Service Center
ATTN: CAP EXEMPT H-1B Processing Unit
24000 Avila Road, Room 2312
Laguna Niguel, CA 92677
(949) 831-8550
U. S. Citizenship and Immigration Services
California Service Center
ATTN: CAP EXEMPT H-1B PREMIUM PROCESSING
24000 Avila Road, Room 2312
Laguna Niguel, CA 92677
(949) 831-8550
H-1 Unit
Bechtel International Center
Stanford University
584 Capistrano Way
Stanford, CA 94305
650.725.7400
In the "sender" area of both labels please use your departmental address. Do not use the USCIS address in the sender field—this will cause your application to be rejected.