(1) The categories of contributing studies are—
(a) core studies; and
(b) any other categories provided for in the criteria guideline.
(2) The authority must make and publish a guideline (the criteria guideline) stating, for each category of contributing studies, the criteria that contributing studies must meet to belong to the category.
(3) The authority must apply the criteria stated in the criteria guideline and decide the category to which contributing studies belong.
(4) The authority must make and publish a guideline (the contributing studies guideline) stating the category to which contributing studies belong.
(5) The category to which contributing studies belong is the category provided for under the contributing studies guideline.