For the EB1-A Extraordinary Ability employment-based visa, you may petition on your own behalf by filing Form I-140, Petition for Alien Worker.
For the EB1-B Outstanding Professors and Researchers employment-based visa, an employer must file Form I-140, Petition for Alien Worker.
For the EB1-C Multinational Manager or Executive employment-based visa, an employer must file Form I-140, Petition for Alien Worker.
The EB1 green card application process will depend on where you reside at the time of your petition. If you are abroad at the time of your petition, you will go through consular process. This means that you will get your immigrant visa at the U.S. Embassy or Consulate of your home country. You and your eligible family members will enter the United States as green card holders. The physical green card and social security card arrive when you get to the United States.
If you are in the United States, you can apply for Adjustment of Status. Depending on whether the visa is available “current” you may apply for Adjustment of Status concurrent to your EB1 petition. Otherwise, you can apply for Adjustment of Status after the EB1 visa requirements are met, your case is approved, and your visa is available.