U.S. Citizenship and Immigration Services offers an online reference library covering a wide variety of immigration topics which can be found on its official website, USCIS.gov. The site contains information about immigration laws, policies, forms, process steps and other tools.
U.S. Citizenship and Immigration Services oversees lawful U.S. immigration processes and policies, grants immigration and benefits, and provides accurate and useful information to its customers, according to its website. Customers may find guidelines for applying for citizenship for themselves or their spouses, as well as applying through parents, naturalization or the military. One can also check the status of an open case with the USCIS.
Additionally, the National Customer Service Center offers nationwide assistance by helping customers with immigration questions via the telephone, according to the USCIS website. Service is offered in both English and Spanish for callers within the United States, including Puerto Rico, the U.S. Virgin Islands and Guam. There is a toll-free number for the majority of callers, a separate number for the hearing impaired, and another number for callers outside of the United States for the sole purpose of checking the status of an open case. Hours of operation vary based on the specific location, but generally live assistance is available from 8:00 a.m. until 6:00 p.m. local time.