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(a) preclude a House of Assembly from making provision for a similar authority for that State; or (b) authorise the exhibition of a cinematograph film in a State without the sanction of the authority established by the Law of that State for the censorship of such films. H. Industrial, commercial and agricultural development 17. The National Assembly may make laws for the Federation or any part thereof with respect to - (a) the health, safety and welfare of persons employed to work in factories, offices or other premises or in inter-State transportation and commerce including the training, supervision and qualification of such persons; (b) the regulation of ownership and control of business enterprises throughout the Federation for the purpose of promoting, encouraging or facilitating such ownership and control by citizens of Nigeria; (c) the establishment of research centres for agricultural studies; and (d) the establishment of institutions and bodies for the promotion or financing of industrial, commercial or agricultural projects. 18. Subject to the provisions of this Constitution, a House of Assembly may make laws for that State with respect to industrial, commercial or agricultural development of the State. 19. Nothing in the foregoing paragraphs of this item shall be construed as precluding a House of Assembly from making laws with respect to any of the matters referred to in the foregoing paragraphs. 20. For the purposes of the foregoing paragraphs of this item, the word “agricultural” includes fishery. The Constitution of the Federal Republic of Nigeria Updated with the First, Second, Third, Fourth and Fifth Alterations 233