A self-funded multiple employer welfare arrangement shall establish and maintain contribution rates for participation under the arrangement that satisfy either of the following requirements:
(1) contribution rates must equal or exceed the sum of projected claims liability for the year, plus all projected costs of operation of the arrangement for the year, plus an amount equal to any deficiency in the reserves of the arrangement for the prior year, minus an amount equal to the reserves of the arrangement in excess of the minimum required level of reserves; or
(2) contribution rates must equal or exceed a funding level established by a report prepared by an actuarial firm.