http://www.murthy.com/current485/VisaBulletinFAQ6-29-07.pdf

AMERICAN IMMIGRATION LAW FOUNDATION
________________________________________________
918 F STREET, NW · WASHINGTON, DC 20004 · TEL: [phone] · FAX: [phone] · WWW.AILF.ORG
USCIS VISA BULLETIN/
VISA AVAILABILTY LAWSUIT
Frequently Asked Questions about Participating in this Lawsuit
AILF is considering filing a lawsuit in federal district court against the U.S. Citizenship and Immigration Services (USCIS) over its rejection of otherwise properly filed adjustment of status applications for the alleged reason that a visa was not available, even though the Visa Bulletin from the Department of State (DOS) states that a visa was available at the time of filing.
Any foreign national who is otherwise eligible for adjustment of status and whose adjustment of status application has been or will be returned or rejected solely on this basis may be eligible to be a plaintiff in this lawsuit. If you are considering being a participant in this lawsuit, you may find the following frequently asked questions and answers helpful.
Q: What is AILF?
A: The American Immigration Law Foundation (AILF) is a non-profit organization dedicated to protecting the rights of immigrants and refugees and to securing fair and just application and administration of the U.S. immigration laws. In order to achieve these goals, AILF sometimes files lawsuits involving various aspects of immigration law.
Q: What is this lawsuit about?
A: This lawsuit will be filed by plaintiffs who have been harmed because USCIS rejected or returned or is expected to reject or return a properly ted adjustment of status application for the alleged reason that no visa was immediately available even though the DOS Visa Bulletin states that a visa was available at that time.
To be eligible for adjustment to lawful permanent resident status, a foreign national must show that a visa number is “immediately available.” USCIS regulations state that the DOS Visa Bulletin is used to determine whether a visa number is immediately available. This Bulletin is published once a month and lists the visa availability dates for all categories of immigrants for the following month. Thus, for example, the July 2007 bulletin, listing visa availability dates for the entire month of July, was published in June 2007.

http://www.murthy.com/current485/VisaBulletinFAQ6-29-07.pdf