How does CVS handle seasonal or temporary employees?

The Credential Verification Service has an "active" flag for each employee.  All employees default to "active" status.  However, at any time, employee's status can be switched to "inactive".  This does not delete any data in the data base.  However, when such an employee's card is scanned, the message "Employee not active in the CVS System" will be displayed.  No billing [...]