Your F4 Visa process begins when your U.S sponsor files a petition for you to enter the U.S.
This is known as the Petition for Alien Relative (Form I-130), and it needs to be approved by the USCIS before you can submit your F4 application form.
The I-130 Petition is usually processed within a few months. When this happens, you will receive a package of instructions from the National Visa Center (NVC). However, all F4 applications are processed on a first-come, first-served basis. This means you can proceed only when your visa current date becomes current.
If there are no more visas available for your category at the time of your application, you must wait for the following year. When the NVC informs you that you can start your F4 application process, you can submit your Form DS-160. If you are traveling with your family, it is essential to include the details of your dependents in your application form.
As all immigrant applicants for the U.S., you must comply with specific medical and vaccination requirements. This includes a complete medical check-up completed by an accredited professional.
If your application is successful, you will be summoned for an interview at your local U.S. Embassy or Consulate. Your spouse and children must accompany you if they are also seeking the F4 Visa status.