17. In section 14(7) of the [1966 c. 21 (N.I.)] Finance Act (Northern Ireland) 1966—
(a)for the definition of “bus service” there shall be substituted—
““ bus service ” means a service available to the general public for the carriage of passengers by road at separate fares, on which there is available to any passenger a journey of such length—
(i)that he is set down at a place less than 30 miles, measured in a straight line, from the place where he was taken up; and
(ii)that no point on the route between those places is 30 miles or more, measured in a straight line, from either of those places;
and does not include any part of a service as regards which taken in isolation from the whole the aforesaid requirements as to the available length of journey are not satisfied;”;
(b)the definition of “prescribed” shall be omitted.