7.—(1) In regulation 18(2)(a), after “an agricultural motor vehicle”, insert “, not being a category T tractor,”.
(2) In regulation 18(2), after sub-paragraph (a), insert—
“(aa)a category T tractor which is not driven at more than 40 km/h;”.
(3) For paragraph (5) of regulation 18, substitute—
“(5) The brakes of—
(a)an agricultural motor vehicle, not being a category T tractor, which is first used on or after 1st June 1986 and is not driven at more than 20 mph;
(b)a category T tractor which is first used on or after 1st June 1986 and is not driven at more than 40 km/h; and
(c)an agricultural trailer manufactured on or after 1st December 1985,
shall be capable of achieving a braking efficiency of not less than 25% when the weight of the vehicle is equal to the total maximum axle weights which the vehicle is designed to have.”.