USCIS is a federal agency that processes applications for immigration benefits nationally. While each state has its own District Office, where many family-based adjustment and citizenship cases are adjudicated locally, the process typically starts by mailing in an application to a designated lockbox facility or Service Center. (In New Jersey, the USCIS District Office is located at 970 Broad Street in Newark, with a Sub-Office located in Mount Laurel.) In addition to the National Benefits Center, there are actually four major immigration "Regional Service Centers" which handle a wide variety of immigration applications. These four service centers serve different geographic locations and sometimes handle different types of locations, so it is absolutely critical that applicants read the most recent instructions to the forms if an immigration attorney is not professionally preparing them. The four Service Centers are the Vermont Service Center; the California Service Center; the Texas Service Center; and the Nebraska Service Center. Most readers of our New Jersey Immigration Lawyers Blog will probably have already heard of the Vermont Service Center ("VSC"), which services New Jersey for many different types of applications. The Vermont Service Center is located at 75 Lower Welden Street, St. Albans, Vermont 05479. People should be aware that as much as one would like to, one cannot just call up or make an InfoPass Appointment to directly visit the Vermont Service Center. If you are experiencing an unusual delay or particular problem with an application located at a Service Center, you might want to call the USCIS Customer Service Number at 1-800-375-5283; write directly to the Service Center; or better yet, retain an experienced attorney to perform an attorney inquiry.