15.—(1) Subject to paragraph (2), the case conversion date is the beginning of the first maintenance period on or after the conversion date.
(2) Where, on or after the commencement date, there is a maintenance assessment in force and a maintenance calculation is made to which paragraph (3) applies, the case conversion date for the maintenance assessment shall be the beginning of the first maintenance period on or after the effective date of the related maintenance calculation.
(3) This paragraph applies where—
(a)the maintenance calculation is made with respect to a relevant person who is a relevant person in relation to the maintenance assessment whether or not with respect to a different qualifying child; or
(b)the maintenance calculation is made in relation to a partner (“A”) of a person (“B”) who is a relevant person in relation to the maintenance assessment and A or B is in receipt of a prescribed benefit.
(4) In paragraph (3)—
“relevant person” means, in relation to a maintenance assessment, the absent parent, which has the meaning given in the former Order, or person with care and, in relation to a maintenance calculation, the non-resident parent or person with care; and
“prescribed benefit” means a benefit prescribed for the purposes of paragraph 4(1)(c) of Part I of Schedule 1 to the Order.