Compensation reduction shall be limited to the amount of eligible expenses in any period of coverage. Except in the case of the occurrence of an event defined in section 14-51-24(a), an employee cannot change an election during a period of coverage. In the event the required employee monthly contribution level necessary for continued coverage under a component plan changes during a plan year, the actual amount of compensation reduction will be changed by an identical amount.
Haw. Code R. § 14-51-32