Chapter 29:15 URBAN COUNCILS ACT this Part make by-laws and may at any time thereafter, by statutory instrument, withdraw or amend any model by-laws so made. (2) Subject to section two hundred and thirty-two, a council may, in accordance with sections two hundred and twenty-eight and two hundred and twenty-nine, make by-laws adopting by reference wholly or in part and with or without modifications any model by-laws made in terms of subsection (1), and the model by-laws as adopted shall have effect as if they were by-laws made by the council. 231 Withdrawal or amendment of model by-laws (1) Any model by-laws made in terms of section two hundred and thirty or part of such model by-laws adopted by or on behalf of a council shall, notwithstanding the withdrawal or substitution in toto of such model by-laws or such part thereof by the Minister, remain of full force within such council area until the council makes by-laws repealing such adoption. (2) Any amendment by the Minister, not amounting to a withdrawal or substitution in toto as contemplated by subsection (1), of model by-laws made in terms of section two hundred and thirty shall not be of force within any council area where such model by-laws have been adopted by or on behalf of the council unless and until such amendment has been adopted by or on behalf of that council in accordance with that section. 232 Model building by-laws (1) The Minister may publish in a statutory instrument model by-laws providing for any of the matters specified in Part IV of the Third Schedule, for any other matter specified elsewhere in the Third Schedule which relates to the construction, maintenance or use of any building as defined in paragraph 33 of the Third Schedule, the provision of water, electricity or other services for such building and the disposal of sewage from such building and for anything which is incidental to or connected with any such matter, and such by-laws (hereinafter referred to as model building by-laws)— (a) shall be drafted in chapters with each chapter dealing with a specified subject-matter; and (b) shall be entitled Model Building By-laws. (2) A council may, in accordance with sections two hundred and twenty-eight and two hundred and twenty-nine, make by-laws adopting by reference either the complete model building by-laws without any modification or any complete chapter or chapters of the model building by-laws without any modification: Provided that in so adopting the model building by-laws or any complete chapter or chapters thereof, the council may— (a) provide that the provisions adopted shall apply only to a specified part or to specified parts of the council area or to a specified class or to specified classes of buildings therein; and (b) make provision for the gradual or phased introduction of the provisions adopted within the council area or any part or parts thereof, including the saving, for any period and subject to any conditions, of any other by-laws of the council in force within that area or part or parts thereof. (3) Where a council has not adopted the whole of the model building by-laws and applied them to the whole of the council area, if he considers it necessary or desirable, the Minister may, after the council has been consulted, on behalf of the council adopt, in accordance with subsections (2) and (3) of section two hundred and thirty-three, the model building by-laws in whole or in part in respect of the whole council area or any specified part or parts thereof or any specified class or classes of buildings therein, as the case may be, and may make provision for the gradual or phased introduction of the model building by-laws or part thereof within such area, and where he has done so— (a) he may likewise amend, repeal or replace any existing by-laws referred to in subsection (2) made by the council; and (b) subsection (8) shall not apply. (4) Different sets of model building by-laws may be made for different areas. 88