9. Every financial contribution required for a service referred to in section 3, for an activity referred to in section 4, for material to which the right of free use does not apply or for the supervision of students at lunch time must be the subject of a clear and detailed invoice. Where a voluntary contribution or a donation is requested, no amount related to it may be included in the total indicated on the invoice.
2019-06-07M.O. 2019-06-07, s. 9; 2022-002M.O. 2022-002, s. 11.