6. Premiums which may be charged under health insurance contracts in certain circumstances.
The following section is inserted after section 7 of the Principal Act:
(1) In this section, 'insured person' means any person, other than the registered undertaking, who is party to or named in the health insurance contract concerned and is of or over the age of 35 years.
(2) Notwithstanding section 7, a registered undertaking may require, on account of any of the circumstances referred to in paragraph (a), (b), (c) or (d) of subsection (4), the payment under a health insurance contract of a premium the amount of which is greater than that of the premium (in this section referred to as the 'unadjusted premium') which could have been required to be paid if this section had not been enacted.
(3) Any requirement to pay such a greater amount is subject to regulations under subsection (6).
(4) The following are the circumstances mentioned in subsection (2) -
(a) the insured person has not previously effected or been named in a health insurance contract with the registered undertaking concerned or any other undertaking,
(b) the insured person had previously effected or been named in a health insurance contract with a restricted membership undertaking of the kind referred to in subsection (2) (b) of section 12 that has served on the Minister a notice under the provision of a scheme mentioned in that subsection before the date specified for the purposes of that subsection,