Approval of types of stud by the Secretary of State
58.—(1) Subject to paragraph (2) the Secretary of State may approve in writing a type of stud for the purposes of direction 57(1)(b), (2) or (3).
(2) To the extent that a type of stud incorporates reflectors or retroreflecting material, the Secretary of State may approve it under paragraph (1) only for the purpose of testing it in order to determine whether it meets the requirements of direction 57(5).
(3) When any stud has been placed in accordance with an approval under paragraph (1), the stud shall cease to be regarded as being of an approved type—
(a)in a case where approval has been granted for a specified period only, on whichever is the earlier of—
(i)the date on which that period expires; or
(ii)the date specified in a notice in writing given by the Secretary of State to the supplier and to the traffic authority as the date after which the stud is no longer to be so regarded;
(b)in a case where approval has been granted without any express time limit, on the date specified in a notice in writing given by the Secretary of State to the supplier and to the traffic authority as the date after which the stud is no longer to be so regarded.
(4) All studs ceasing to be of an approved type shall be removed on or before the appropriate date in accordance with paragraph (2).