The request for authorisation to work part time shall be submitted by the official through the official's immediate superior at least two months before the requested date, except in duly justified urgent cases.
Authorisation may be granted for a minimum of one month and a maximum of three years, without prejudice to the cases referred to in Article 15 and point (g) of Article 55a(2).
The authorisation may be renewed on the same terms. Applications for renewal shall be made by the official concerned at least two months before expiry of the period for which the authorisation was granted. Part-time work may not be less than half the normal working time.
A period of part-time work shall start on the first day of a month, except in duly justified cases.