In this Part—
"corresponding law" means a law that is declared to be a corresponding law by an Order in Council made under section 170;
"determining body", in relation to a participating State or Territory, means a court, tribunal, board or other body that is authorised under a corresponding law to make, revoke, amend or vary a guardianship order, a supportive guardianship order, an administration order, a supportive administration order or an administration (missing person) order;
"interstate order" means an order made under a corresponding law of a participating State or Territory;
"participating State or Territory" means a State or Territory of the Commonwealth in which a corresponding law is in force.