After section 148(3)(a) of the Accident Compensation Act 1985 insert —
"(aa) a subsidiary of a holding company that is a holding company that is approved as a self-insurer under this Part becomes a non-WorkCover employer within the meaning of Part VIA;
(ab) a subsidiary to which paragraph (aa) applies ceases to be a non-WorkCover employer within the meaning of Part VIA;".