Your son is not classified as an "immediate relative," and the petition process takes place at a later date than the actual visa issuance. A citizen's married child is preference category F-3; only about 23,000 of these immigrant visas are available each year--so they are over-subscribed. More information is needed to identify when the visa would be available, but it will be approximately 11 years (more if he is chargeable to Mexico or Philippines) on the Department of State Visa Bulletin--from the priority date. The petition priority date is the date the petition was initially filed with DHS/USCIS. Your preference category, priority date, and country of origin determine your place in line for an immigrant visa.
You must first petition (Form I-130) for your son's immigrant visa. DHS/USCIS approval of the I-130 is only the necessary first step for an immigrant visa, or permanent residence (“green card”) a family member. The I-130 approval is not the grant of permanent resident status (“green card”). You do not need to file a separate I-130 for your son's wife and unmarried children under 21 years of age.
USCIS processing time for I-130 is approximately 6 months. After USCIS approves a preference category petition, the approved petition sits on the shelf as the beneficiary intending immigrant waits in line for the visa to become available according to the Visa Bulletin. When the visa number becomes available, which is also referred to as the priority date is current, is when the intending immigrant beneficiary can take the next step and apply for permanent residence.
Note: This information is offered for educational purposes only; and, is not, and should not be considered, legal advice. No attorney-client relationship is created unless we have a signed engagement letter.
For more information contact immigration attorney Gerald Goulder at www.gouldervisa.com
Answered on Jan 29th, 2013 at 4:10 PM