(1)A London borough council may at any time prepare such revisions as it considers appropriate to the council’s local implementation plan.
(2)Where the Mayor revises the transport strategy under section 41(2) above, each London borough council shall as soon as reasonably practicable after the Mayor has published the transport strategy as revised prepare such revisions to the council’s local implementation plan as it considers are necessary in order to implement that strategy in its area.
(3)Where a London borough council considers that no revisions are required to be prepared under subsection (2) above the council shall notify the Mayor.
(4)For the purposes of this section, the “local implementation plan”, in relation to any London borough council, means whichever of the following has been most recently approved, or as the case may be, prepared, by the Mayor, namely—
(a)a local implementation plan prepared by the council and approved by the Mayor under section 146 above;
(b)a local implementation plan, as proposed by the council to be revised, approved by the Mayor under that section; and
(c)a local implementation plan or revised local implementation plan prepared by the Mayor on behalf of the council.