When the employer decides to dismiss an employee for economic reasons, whether as an individual or as part of a mass redundancy scheme involving less than ten employees within the same thirty-day period, he shall notify the employee of the dismissal by registered letter with acknowledgement of receipt.
This letter may not be sent less than seven working days from the scheduled date of the prior redundancy interview to which the employee has been summoned.
This period is fifteen working days for the individual dismissal of a member of management staff mentioned in 2° of article L. 1441-13.