(1)Before making modifications under section 18(1) (exploitation of electricity trading and transmission arrangements) or section 25(1) (notice of unilateral changes to domestic supply contracts), the Secretary of State must lay a draft of the modifications before Parliament.
(2)If, within the 40-day period, either House of Parliament resolves not to approve the draft, the Secretary of State may not take any further steps in relation to the proposed modifications.
(3)If no such resolution is made within that period, the Secretary of State may make the modifications in the form of the draft.
(4)Subsection (2) does not prevent a new draft of proposed modifications being laid before Parliament.
(5)In this section “40-day period”, in relation to a draft of proposed modifications, means the period of 40 days beginning with the day on which the draft is laid before Parliament (or, if it is not laid before each House of Parliament on the same day, the later of the 2 days on which it is laid).
(6)For the purposes of calculating the 40-day period, no account is to be taken of any period during which Parliament is dissolved or prorogued or during which both Houses are adjourned for more than 4 days.