In order to implement an employee’s entitlement to the leave referred to in Article L. 3142-6, a company collective agreement or agreement or, failing that, a branch agreement or agreement shall determine:
1° The maximum duration of the leave ;
2° The number of times the leave may be renewed ;
3° The conditions under which the leave may be split up or converted into a period of part-time work;
4° The time limits for informing the employer by the employee about the taking of the leave, its foreseeable duration, its renewal and the length of the notice period in the event of the employee’s return before the planned end of the leave;
5° The measures enabling a link to be maintained between the company and the employee during the period of leave and the arrangements for supporting the employee on his return.