(a) The provisions of this article become effective July 1, 1998: Provided, That no payout of any benefits may be made to any person prior to January 1, 2000: Provided, however, That members who retired due to a disability may begin receiving the benefits at the rate and in the amount specified in either section fourteen or section fifteen of this article, as the case may be, from this fund after June 30, 1999: Provided further, That until June 30, 1999, those members who retired due to a disability may draw benefits from this fund at the rate and in the amount set forth in section twenty-five, article ten, chapter five of this code.

(b) During the eighteen-month period before the payout of benefits begins, the Joint Committee on Government and Finance shall cause an interim study or studies to be conducted on potential effects of the implementation of this retirement system, including, but not limited to, potential funding mechanisms to provide health insurance coverage for retirees in the fifty to fifty-five age group: Provided, That after the effective date of this provision, the director of the Public Employees Insurance Agency shall promulgate a rule governing the funding of health insurance coverage for retirees under the plan provided for in this article who are in the fifty to fifty-five year age group, which rule may be filed as an emergency rule: Provided, however, That any rule filed as an emergency rule pursuant to this subsection shall be refiled at the earliest opportunity as a legislative rule for review and promulgation in accordance with the provisions of article three, chapter twenty-nine-a of this code.