(1)    This section applies to—

(a)    any MPS,

(b)    any amendment of an MPS,

(c)    any marine plan,

(d)    any amendment of a marine plan.

(2)    Anything falling within the paragraphs of subsection (1) is referred to in this section as a “relevant document”.

(3)    A relevant document must not be questioned in any legal proceedings, except in so far as is provided by the following provisions of this section.

(4)    A person aggrieved by a relevant document may make an application to the appropriate court on any of the following grounds—

(a)    that the document is not within the appropriate powers;

(b)    that a procedural requirement has not been complied with.

(5)    Any such application must be made not later than 6 weeks after the publication of the relevant document.

(6)    In this section—

“the appropriate court” means—

(a)    the High Court, if the relevant document is a marine plan, or an amendment of a marine plan, for an area within the English inshore region or the Welsh inshore region;

(b)    in any other case, any superior court in the United Kingdom;

“the appropriate powers” means—

(a)    in the case of an MPS or an amendment of an MPS, the powers conferred by Chapter 1 of this Part;

(b)    in the case of a marine plan or an amendment of a marine plan, the powers conferred by—

(i)    Chapter 2 of this Part, or

(ii)    section 55 (delegation);

“procedural requirement” means any requirement—

(a)    under the appropriate powers, or

(b)    in directions under section 55 or 57,

which relates to the preparation, adoption or publication of a relevant document;

“superior court in the United Kingdom” means any of the following—

(a)    the High Court;

(b)    the Court of Session.