section 88 this section was repealed by section 133(2) of, and schedule 7 to, the building act 1984. section 89 this section was repealed by section 81(1) of, and schedule 2 to, the local government (miscellaneous provisions) act 1976. section 90 the definition of sewerage authority in section 90(1) was repealed by section 40(3) of, and schedule 9 to, the water act 1973. section 90(3) was repealed by section 133(2) of, and schedule 7 to, the building act 1984. in section 90(4), the words from "and any reference" onwards, repealed by section 3(1) of, and part i of schedule 3 to, the water consolidation (consequential provisions) act 1991. section 90(5) was repealed by section 3(1) of, and part i of schedule 3 to, the water consolidation (consequential provisions) act 1991. section 90(6) was repealed by section 133(2) of, and schedule 7 to, the building act 1984.