25.—(1) A certificate shall specify the amount for which the person to whom it is issued is liable under section 23(2).
(2) The amount to be specified is to be that set out in, or determined in accordance with, regulations.
(3) But if a certificate relates to a traffic casualty who has not received health services treatment at a health services hospital in respect of his injury, it shall indicate that no amount is payable to the Department by reference to that certificate.
(4) Regulations under subsection (2) may, in particular, provide—
(a)that the amount, or the aggregate amount, specified in a certificate is not to exceed a prescribed sum;
(b)for different amounts to be specified in respect of different circumstances, including, in particular, whether or not the treatment concerned was in respect of injuries resulting from an incident occurring before 2nd July 1997;
(c)for cases in which a traffic casualty receives treatment at two or more health services hospitals;
(d)for cases in which liability under section 23(2) is to be apportioned between two or more persons making compensation payments in respect of the same traffic casualty.
(5) Regulations under subsection (2) may be made so as to apply to any certificate issued after the time the regulations come into operation, other than one relating to a compensation payment made before that time.
(6) A person to whom a certificate is issued is entitled to such particulars of the manner in which any amount specified in the certificate has been determined as may be prescribed, if he applies to the Department for those particulars.