(1) In this article "prohibited condition" means every condition, restriction or limitation on the liability of the insurer or guarantor under an approved policy of insurance or an approved guarantee which comes within any of the classes specified in the First Schedule to these Regulations or any other condition, restriction or limitation which has substantially the same effect as a condition, restriction or limitation which is so specified.

(2) There shall not be inserted in an approved policy of insurance or an approved guarantee any condition, restriction or limitation on the liability of the insurer or guarantor which affects the right of any person, except the person to whom the policy or guarantee was issued, to recover by virtue of the policy or guarantee an amount under section 76 of the act or which could have the effect of reducing the amount which such a person could so recover, if such condition, restriction or limitation is a prohibited condition.