23. Such committees may:
(a) give an opinion, from the point of view of religion and morals, to the Minister of Education respecting the curricula, textbooks, teaching material or classes of teaching material that the Minister adopts or approves for instruction other than Catholic or Protestant moral or religious instruction; the Minister shall transmit such documents to them not less than 60 days before their adoption or approval;
(b) receive and hear the requests and suggestions of associations and institutions and of any person respecting any matter within their competence;
(c) cause to be carried out such studies and research as they deem necessary or useful for the pursuit of their objects;
(d) make for their internal management regulations which shall be subject to the approval of the Government.