1E+WNothing in Chapter III of Part IV of this Act (except so far as it relates to special category effluent) or in the repeals made by the M1Water Consolidation (Consequential Provisions) Act 1991 shall affect—
(a)any agreement with respect to any trade effluent to which a sewerage undertaker is a party by virtue of its having been duly made before 1st July 1937 between a predecessor of the undertaker and the owner or occupier of any trade premises; or
(b)any agreement saved by section 63(8) of the M2Public Health Act 1961 (pre-1961 Act agreements with respect to discharges from premises used for farming or for scientific research or experiment).