When the report of a selection board convened under
section 20211 of this title is approved by the President, the Secretary of the Air Force shall place the names of all officers approved for promotion within a competitive category on a single list for that competitive category, to be known as a promotion list, in the order of the seniority of such officers on the Space Force officer list or based on particular merit, as determined by the promotion board, or as modified by the Secretary of the Air Force under
section 20217 of this title.