Immigration Forms 

Form I-130, Petition for Alien Relative,

with U.S Citizenship and Immigration Services (USCIS) to establish the existence of a relationship to certain alien relatives who wish to immigrate to the United States.

Form I-485, Application to Register Permanent Residence or Adjust Status, is the form a family-based beneficiary files with USCIS to apply for permanent residency.

Form N-400, Application for Naturalization, is the application a permanent resident files to apply for U.S. citizenship, also known as the "naturalization process".