[Q] To which USCIS Service Center do I submit forms for COS or EOS?

Because USCIS procedures can change all the time, the best way to check is to read the Instructions for the relevant USCIS forms. You can follow below steps to obtain Instructions for all USCIS forms.

1. Go to www.uscis.gov, which is the official website for the USCIS.

2. Click the "Forms" Menu at the top left.

3. Find appropriate form and click it.

4. You will see Instructions PDF file at the bottom. Click it to read the instructions which contain detailed information on the filing fees and where to file the form, etc. You have to read it very carefully.

Having said this, as of July 22, 2010, the following is where to file I-129 forms:

California Service Center Filings

File Form I-129 with the California Service Center if the beneficiary is or will be employed temporarily or receiving training in:

Alaska, Arizona, California, Commonwealth of Northern Mariana Islands (CNMI), Colorado, Guam, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, North Dakota, Ohio, Oregon, South Dakota, Utah, Washington, Wisconsin, or Wyoming.

All Other I-129 Cases:

USCIS California Service Center ATTN: I-129 P.O. Box 10129 Laguna Niguel, CA 92607-1012

Courier Address for All I-129s:

USCIS California Service Center 24000 Avila Road
2nd Floor, Room 2312 Laguna Niguel, CA 92677 (Please note the type of I-129 in the attention line)

Premium Processing:

If the classification requested on Form I-129 is eligible for Premium Processing and you wish to request Premium Processing services, use the designated Premium Processing address for the California Service Center, as indicated.

Form I-907/I-129 Regular Mailing Address:

Premium Processing Service
USCIS California Service Center P.O. Box 10825
Laguna Niguel, CA 92607 (Please note the type of I-129 in the attention line)

Form I-907/I-129 Courier Mail Address:

Premium Processing Service
USCIS California Service Center 24000 Avila Road
2nd Floor, Room 2312 Laguna Niguel, CA 92677 (Please note the type of I-129 in the attention line)

Form I-907/I-129 E-Mail Address: CSC-Premium.Processing@dhs.gov

Vermont Service Center Filings

File Form I-129 with the Vermont Service Center if the beneficiary is or will be employed temporarily or receiving training in:

Alabama, Arkansas, Connecticut, Delaware, the District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Mississippi, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oklahoma, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, Tennessee, Texas, Vermont, Virginia, U.S. Virgin Islands, or West Virginia.

USCIS Vermont Service Center ATTN: I-129 75 Lower Welden Street St. Albans, VT 05479-0001

Premium Processing Service USCIS Vermont Service Center
ATTN: I-129
30 Houghton Street St. Albans, VT 05478-2399

Form I-907/I-129 E-Mail Address: VSC-Premium.Processing @dhs.gov.