The provisions of Schedule 6 to the Road Traffic Regulation Act 1984 are hereby varied as follows:—
(1) in Part I:—
(a) in item 3, for the figure “50” in columns 3(a) and (b) (respectively the speed limit on a motorway and on a dual carriageway road not being a motorway) there shall be substituted the figure “60” ;
(b) in item 5(2)(a), for the figure “50” in column 3(b) (the speed limit on a dual carriageway road not being a motorway) there shall be substituted the figure “60” ;
(c) the following item shall be added in the Table:—
(2) in Part IV, in paragraph 2, before “articulated vehicle” there shall be inserted ““agricultural motor vehicle”” .