Cut-off Date

The date that determines whether a preference immigrant visa applicant can be scheduled for an immigrant visa interview in any given month.  The cut-off date is the priority date of the first applicant who could not get a visa interview for a given month.  Applicants with a priority date earlier than the cut-off date can be scheduled.  However, if your priority date is on or later than the cut-off date, you will need to wait longer, until your priority date is reached (becomes current).  To find out whether a preference case is current, see the Visa Bulletin or telephone (202) 663-1541.

Source: U.S. Department of State.