Part 1: Environmental Governance Chapter 1: Improving the natural environment Section 10: Reviewing and revising environmental improvement plans
Section 10 provides for the review and revision of EIPs. It establishes a duty on the Secretary of State to review the EIP, and timeline in which to complete a review and, if appropriate, revise the plan. Given section 8(6), this section applies only in relation to England.
	Subsection (1) establishes the duty on the Secretary of State to review the EIP and, if the Secretary of State is required to revise the plan under section 11, or considers it appropriate to revise the plan as a result of the review, to produce a revised plan. It is expected that revisions will be appropriate when each EIP is reviewed, but this section does allow the Secretary of State to decide that no revision is appropriate following a review of the EIP.
	Subsection (2) specifies that a revised plan will cover the remaining time period of the existing plan. The current EIP runs until 2043; any revisions to this plan will also be required to cover the period up to 2043. Furthermore, when an EIP for a future time period is produced in line with section 13, the time period will be specified in that EIP and any revisions to it must retain the same end date.
	Subsection (3) specifies that the first EIP (the 25 Year Environment Plan) must be reviewed by the end of January 2023. This is just over five years from its publication. This is considered to be sufficient time for some progress to be made against the EIP, for the monitoring of the environment to assess improvement established, and for early results to be obtained. This time also allows for weaknesses and gaps in the EIP and policy changes to be identified that may require a revision to the EIP.
	Subsection (4) applies to future EIPs, and ensures that they too are first reviewed within five years of taking effect.
	Subsection (5) provides that, following the first review of an EIP, further reviews must be undertaken within every five year period for the duration of the EIP. In accordance with this, the 25 Year Environment Plan must be reviewed for a second time before 31 January 2028.
	Subsection (6) requires that when the Secretary of State has completed a review and determined it appropriate to revise the plan, then this revised plan must be laid before Parliament along with a statement explaining what revisions have been made and why. This statement may be part of the same document as the revised plan or a separate document.
	Subsection (7) requires that, if the Secretary of State completes a review but does not consider it appropriate to revise the EIP, then the Secretary of State must lay before Parliament a statement to this effect and the reasons for this. Whilst the Secretary of State is required to complete a review within the five year timeline there is no duty to revise the EIP if a revision is not appropriate. (However, the Secretary of State must revise the EIP if so required under section 11.) This allows for a revision to the EIP to be delayed if the Secretary of State considers it appropriate, but such a decision must be justified to Parliament.
	Subsection (8) requires the Secretary of State to publish any documents laid before Parliament following a review of an EIP. These will be the revised plan and reasoning as in subsection (6), or the statement as to why no revision is considered appropriate as in subsection (7).
	Subsection (9) specifies that a review is to be considered completed when documents have both been laid before Parliament and published. This is the completion date for the purpose of meeting the requirement to complete a review within five years of an EIP being published or previous review. It also becomes the start date for the next five-year time period for completing the subsequent review.
	Subsection (10) clarifies that, when the EIP is revised in accordance with this section, the references to an EIP in this Act refer to the now revised EIP.