cutoff
n.
A point where a record series can be broken into a regular segment that can be disposed of as a block.
v.
To isolate a portion of a series into regular segments, for purposes of disposal.
Notes
A cutoff interval is often based on a recurring date, such as end of month or fiscal year, or an event, such as contract payoff. The disposition of records within a series may be determined by the cutoff date, rather than the date of creation or receipt, allowing a group of records created or received over a period of time to be disposed of in one action.