What is USCIS?
U.S. Citizenship and Immigration Services (USCIS), part of the U.S. Department of Homeland Security (DHS), is the government agency that oversees legal immigration to the United States. USCIS is primarily responsible for approving green cards, naturalization, work permits, travel permits, and other “immigration benefits.”
What is the Visa Bulletin?
The visa bulletin, issued every month by the U.S. Department of State, shows which green card applications can move forward, based on when the I-130 petition that starts the green card process was originally filed. The visa bulletin exists because Congress caps the number of green cards that can be issued each year in certain categories, which has created several backlogs.