[§89-8.5] Negotiating authority; Hawaii health systems corporation. Notwithstanding any law to the contrary, including section 89-6(d), the Hawaii health systems corporation or any of the regional boards, as a sole employer negotiator, may negotiate with the exclusive representative of any appropriate bargaining unit and execute memorandums of understanding for employees under its control to alter any existing or new collective bargaining agreement on any item or items subject to section 89-9. [L 2009, c 182, §5]