423Recovery under guarantees

423 Recovery under guarantees (a) the non-WorkCover employer fails to make a payment required under section 418 or 419; or (b) the non-WorkCover employer is an externally-administered body corporate within the meaning of the Corporations Act— the Authority may recover under a guarantee under section 421 or 422 any loss suffered by the Authority. (2) For the purpose of any proceeding commenced by the Authority to recover under a guarantee under subsection (1), a certificate purporting to be signed by an officer or employee of the Authority certifying that— (a) an event referred to in subsection (1) and specified in the certificate has occurred; and (b) the Authority has suffered a loss of the amount specified in the certificate as a result of that event occurring— is evidence of the matters stated in the certificate and, in the absence of evidence to the contrary, is proof of those matters.