10.—(1) Every direction under section 56(1) or 56A must be given by giving the undertaker a copy of the notice relating to the works given by that undertaker in accordance with regulation 8, or where no such notice is required, regulation 9; the copy being endorsed with the terms of the direction.
(2) A direction under section 56(1A) must be given by giving the undertaker a copy of the notice of the beginning of the works given by that undertaker under section 74(5C); the copy being endorsed with the terms of the direction.
(3) In relation to a notice under regulation 8 a direction under section 56(1) and the first of any directions under section 56A is of no effect if given more than one month after the receipt of the notice by the street authority.
(4) In relation to a notice pursuant to regulation 9(1) or (2), a direction under section 56(1) and the first of any directions under section 56A will be of no effect if given later than —
(a)5 days from the date of receipt of the notice by the street authority in the case of major works or standard works; and
(b)2 days from the date of its receipt by the street authority in the case of minor works.