The Secretary of State—
A review may relate to all or part of a national policy statement , and in this section a "full review" means a single review relating to all of a national policy statement.
In deciding when to review a national policy statement the Secretary of State must consider whether—
In deciding when to review part of a national policy statement ("the relevant part") the Secretary of State must consider whether—
Whenever the Secretary of State decides to review a national policy statement, the Secretary of State must lay a statement before Parliament announcing the review.
After completing a review of all or part of a national policy statement the Secretary of State must do one of the following—
But, unless and until a statement's designation as a national policy statement is withdrawn—
An amendment of a national policy statement counts for the purposes of subsection (5A) only if the amendment arises from a full review of the statement.
An amendment of a national policy statement that is required by subsection (5A) to be made by a certain time may be delayed beyond that time only if and for so long as exceptional circumstances exist which, in the opinion of the Secretary of State, make the delay unavoidable.
In that case the Secretary of State must, before the deadline for amending the national policy statement, lay a statement before Parliament explaining the reasons for the extension and stating when the Secretary of State expects to amend the national policy statement.
Before amending a national policy statement the Secretary of State must carry out an appraisal of the sustainability of the policy set out in the proposed amendment.
The Secretary of State may amend a national policy statement only if the consultation and publicity requirements set out in section 7, and the parliamentary requirements set out in section 9, have been complied with in relation to the proposed amendment and—
In subsection (7) "the consideration period", in relation to an amendment, means the period of 21 sitting days beginning with the first sitting day after the day on which the amendment is laid before Parliament ..., and here "sitting day" means a day on which the House of Commons sits.
Subsections (6) to (7A) do not apply if the Secretary of State thinks that the proposed amendment (taken with any other proposed amendments) does not materially affect the policy as set out in the national policy statement.
If the Secretary of State amends a national policy statement, the Secretary of State must—
In subsections (7)(b)(i) and (7A), references to an amendment being laid before Parliament are references to—