I.-In order to be extended, the branch agreement concluded at national level must contain clauses relating to the determination of the rules for negotiation and conclusion, as provided for in articles :
1° L. 2222-1 and L. 2222-2, relating to the territorial and professional scope ;
2° L. 2222-5 and L. 2222-6, relating to the procedures for renewal, revision and termination;
3° L. 2232-3 and L. 2232-9, relating to the guarantees granted to employees participating in the negotiations.
II – It also contains clauses relating to :
1° The exercise of trade union rights and the freedom of opinion of employees, the career development of employees exercising trade union responsibilities and the performance of their duties;
2° Social and economic committees and, where applicable, the financing of social and cultural activities managed by them;
3° The essential elements used to determine professional classifications and qualification levels;
4° The national minimum professional wage for unskilled employees and all the elements affecting the calculation of the wage applicable to each professional category, as well as the procedures and frequency for its revision;
5° Paid holidays;
6° Conditions of recruitment of employees;
7° Conditions for termination of the employment contract;
8° The organisation and operation of lifelong vocational training;
9° Professional equality between women and men, the elimination of pay differentials and measures to remedy any inequalities observed;
10° Equal treatment of employees and prevention of discrimination;
11° The conditions for realising the right to work of disabled people;
12° Where necessary in the branch:
a) Special working conditions for pregnant women, women who have recently given birth or are breastfeeding and young workers;
b) The conditions of employment and remuneration of part-time employees;
c) Conditions of employment and remuneration of home workers;
d) Guarantees for employees working abroad;
e) Conditions of employment for temporary employees or employees of outside companies;
f) The conditions of remuneration for employees who are the authors of an invention devolved to the employer by virtue of the provisions of the third paragraph of article L. 611-7 of the Intellectual Property Code;
g) Guarantees for employees residing in a metropolitan department and called upon to work in Guadeloupe, French Guiana, Martinique, Mayotte, La Réunion, Saint-Barthélemy, Saint-Martin or Saint-Pierre-et-Miquelon, Wallis and Futuna and the French Southern and Antarctic Territories;
13° The conventional conciliation procedures according to which collective labour disputes likely to arise between employers and employees bound by the agreement will be settled;
14° The terms of access to a provident scheme or a scheme for the additional reimbursement of expenses incurred as a result of illness, maternity or accident under conditions at least as favourable as those provided for in II of article L. 911-7 of the Social Security Code;
15° The terms and conditions for implementing profit-sharing and employee savings schemes;
16° The procedures for taking into account, in the branch or company, requests relating to negotiation topics emanating from one or more representative employee trade union organisations.