E/C.12/MRT/CO/1 education and the social and cultural factors involved such as girls’ duties at home. The Committee also calls on the State party to intensify its efforts for the reintegration in school of children who have dropped out, to invest in the training of teachers, to improve the accessibility of secondary and higher education as well as vocational training, and to put into place scholarship schemes. The Committee encourages the State party to take this recommendation into account at the upcoming education review. 31. While noting the Arabic-French bilingualism in education in the State party, the Committee is concerned that the teaching and use of the other national languages – the Pulaar, Soninke and Wolof – are not sufficiently promoted. The Committee calls on the State party to promote the teaching of the Pulaar, the Soninke and the Wolof in school as well as their use in official proceedings so as to avoid discrimination against non-Arabic speakers. 32. The Committee regrets that it has not been provided with information on concrete measures taken to promote the specific cultural heritages of the State party’s ethnic minorities, namely, the Pulaar, the Soninke and the Wolof (art. 15). The Committee requests the State party to provide, in its next periodic report, information on measures taken for the promotion of the cultural heritage of ethnic minorities, and the share of the public budget for culture invested therein, In this regard, the Committee refers the State party to its general comment No. 21 (2009) on the right of everyone to take part in cultural life. 33. The Committee encourages the State party to continue to promote the participation of the population in the realization of economic, social and cultural rights, including by introducing a declaratory system permitting the free registration of non-governmental organisations so that they can function in independence, and by lifting the restrictions imposed on non-profit radio broadcasting stations by the law on the liberalization of radio broadcasting. 34. The Committee encourages the State party to consider signing and ratifying the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights. 35. The Committee requests the State party to disseminate the present concluding observations widely among all levels of society, in particular among State officials, the judiciary and civil society organizations, translate and publicize them as far as possible and inform the Committee of the steps taken to implement them in its next periodic report. It also encourages the State party to engage all relevant actors, including the national human rights institution, non-governmental organizations and other members of civil society, in the process of discussion at the national level prior to the submission of its next periodic report. 36. The Committee requests the State party to submit its second periodic report, prepared in accordance with the revised reporting guidelines of the Committee, adopted in 2008 (E/C.12/2008/2), by 30 November 2017. 8