When a matter requiring action of the Secretary of Transportation is submitted under section 40109(a) or (c)-(h), 41309, or 42111 of this title and an evidentiary hearing—

(1) is ordered, the Secretary shall make a final decision on the matter not later than the last day of the 12th month that begins after the date the matter is submitted; or

(2) is not ordered, the Secretary shall make a final decision on the matter not later than the last day of the 6th month that begins after the date the matter is submitted.