If you have a family member that has filed an I-130 immigrant petition on your behalf, you may need to learn how to read the visa bulletin. Immediate relatives (spouses, parents and minor children of U.S. citizens) have an unlimited number of visas available.
The Visa Bulletin was created because the demand for immigrant visas largely exceeds the supply, meaning that there are much more people applying for Green Card every year than there are available visas issued. Therefore, every month DOS issues the Visa Bulletin to indicate immigrant visas availability. There are two sections in the Visa Bulletin.