Collective bargaining agreements may:
1° Contain more favourable provisions than those provided for in this sub-section, particularly with regard to remuneration;
2° Specify the periods of leave best suited to the needs of each profession;
3° Set the terms and conditions for the financing of the training, intended to cover the educational costs as well as the costs of compensation for the travel and accommodation expenses of the trainees and instructors;
4° Define amicable procedures for settling any difficulties that may arise in the application of the foregoing provisions;
5° Provide for the creation of mutual funds to pay for leave and finance training.
Establishment agreements may determine the distribution of leave by department or by professional category.