To the extent that the Tax Credits Act 1999 (c. 10) is saved by the Tax Credits Act 2002 (Commencement No. 4, Transitional and Savings) Order 2003 (S.I. 2003/962), the modifications made by paragraphs 88 to 91 shall have effect in relation to the relevant provisions of that Act as they have effect in relation to the Tax Credits Act 2002 (c. 21).