3. Any carrier subject to this section is immune from any claim of or liability to any enrollee, any hospital or other health care provider for any action taken in furtherance of the authority and directives as set forth in this section. The terms of this section are deemed to amend the contract between the carrier and the University of Maine System and prevail over any inconsistent terms in the contract or certificates of coverage. A reimbursement rate, discount or rebate resulting from an agreement under subsection 1 may not be used by the carrier as a reference or base rate for any other contractual arrangement.

5. Notwithstanding the provisions of the Maine Revised Statutes, Title 24-A, including sections 2174, 2185 and 2677-A, the agreement negotiated in accordance with subsection 1 may provide for adjustments to the amounts payable to providers on an aggregate services basis and on a retrospective basis, and such adjustments may not require any change to previously calculated coinsurance amounts, deductibles, lifetime maximums, benefit differentials or other benefit calculations relating to services to individual enrollees covered under the plan provided by or arranged by the University of Maine System. The aggregate share of financial responsibility contributed by employees and retirees for their coverage through coinsurance amounts, deductibles, lifetime maximums, benefits differentials or other benefit calculations may increase a portion of the total cost.__The changes made by this subsection may not require any changes in the current dollar level of employee cost sharing under the plan provided by or arranged by the University of Maine System. The chancellor shall provide notice to all such covered persons that the State has arranged for a reduction negotiated reductions in the cost of medical services to the University of Maine System and that such reduction will not be taken into consideration in and shall describe the effect on the calculation of coinsurance amounts, deductibles, lifetime maximums, benefit differentials or other benefit calculations applicable to the plan benefits provided by or arranged by the system. Such notice must include any additional disclosures necessary to fully inform such persons of the implications of this arrangement. It is not the responsibility of the carrier to provide such disclosure or notice.

Sec. A-3. Retroactivity. That section of this Part that amends Public Law 2003, chapter 20 applies retroactively to July