Useful links Useful tools Calculator of days outside the US for naturalization DACA calculator to determine deferred action eligibility DACA renewal calculator Useful immigration links United States Citizenship and Immigration Services (USCIS) Check your case status online Schedule an InfoPass appointment E-Request–initiate online inquiry Naturalization Self Test Forms and filing fees Online detainee locator Asylum office locator by zip code U.S. Department of State visa bulletin visa wait times check the status of your U.S. visa application