On and from the commencement of section 756 —
(a) a youth justice unit established under section 478(d) of the Children, Youth and Families Act 2005 , as in force immediately before that commencement, is taken to be a youth justice community service centre established under section 756(1); and
(b) a service approved as a youth justice unit under section 479(1) of the Children, Youth and Families Act 2005 , as in force immediately before that commencement, is taken to be approved as a youth justice community service centre under section 756(2).