EB-3 is the permanent visa category for those who do not have a sufficiently structured profile to apply for an EB-1 or EB-2 visa. In fact, the requirements for an EB-3 are less rigid and allow almost any type of worker to be accommodated in this category; however, waiting times, are longer than the other EB categories.
The procurement process is the same as the EB-2 classification. Therefore, you can consult the section of the site that deals with the last category for more information.
Members of the applicant’s family:
Parallel to the applicant, the spouse and children under 21, provided they are not married, can apply for permanent residence at the request of the applicant. Obviously, once the green card is obtained, it will be possible, after the appropriate period, to apply for US citizenship.