(a) Each plan enrollee, in accordance with Section 1551.305, shall contribute any amount required to cover the selected participation in the high deductible health plan that exceeds the state contribution amount under Section 1551.456.
(b) A plan enrollee may contribute any amount allowed under federal law to the enrollee's health savings account in addition to the state contribution under Section 1551.456.
(c) A plan enrollee shall make contributions under this section in the manner prescribed by the board of trustees.