that date which is to come into force on or after that date. 275. Modification of existing law by first President. The first President elected under this Constitution may, within twelve months after assuming office as President, by statutory instrument, make such provision as may appear necessary for repealing, modifying, adding to or adapting any law for bringing it into conformity with this Constitution or otherwise for giving effect to this Constitution. 276. Enactments not yet in force. Where immediately before the coming into force of this Constitution any existing law had not been brought into force or was to come into force on a date subsequent to the coming into force of this Constitution, that law may be brought into force in accordance with its terms or shall come into force on such subsequent date as the case may be. 277. Provisions regarding urban authorities. (1) Subject to the provisions of this Constitution, the urban authorities in existence at the coming into force of this Constitution, other than the Kampala City Council, shall constitute lower local government units under the district councils within whose district they fall. (2) Subject to the powers of Parliament, the laws applicable to urban authorities immediately before the commencement of this Constitution, shall apply with such modifications as may be necessary to give effect to the provisions of Chapter Eleven of this Constitution. 278. Existing commissions and committees of inquiry. Notwithstanding anything in this Constitution to the contrary, any commission or committee of inquiry in existence immediately before the coming into force of this Constitution may continue in existence until the submission of its report unless otherwise dissolved in accordance with the law. 279. Oaths deemed to have been taken. Notwithstanding any provision of this Constitution, any person who