18. Amount of subsidy

(1) This section applies subject to section 19.

(2) Subject to this Scheme, the amount of subsidy payable on behalf of an eligible member for a premium period is:

(a) for an eligible member referred to in paragraph 12 (1) (a), the amount calculated using the PSS calculation; or

(b) for a procedural general practitioner in a rural area, the amount calculated using the rural calculation; or

(c) for a member with a MISS entitlement, the amount calculated using the MISS calculation.

(3) If during the whole or part of a premium period, a member is an eligible member in more than one category mentioned in subsection (2), the amount of subsidy calculated for that member for the premium period or part of the period is, unless section 22 applies, the higher of the amounts calculated for each of the categories applying to the member at that time.

(4) For the avoidance of doubt, an eligible member can be paid a subsidy only in respect of one category at any one time during the premium period.