; (C) the Authority may, with respect to those employees who were hired before the date of enactment of this Act but who had yet to accumulate a total of 5 years of employment with the Authority, determine a benefits plan which may include a combination of a defined benefit and a defined contribution; and (D) the Authority shall, for all employees not enrolled in the Authority’s pension system on the date of enactment of this Act, provide defined contribution retirement plans. (l) Clarification The provisions in this section are prescribed as minimum criteria. Nothing in this section shall be construed to limit— (1) the Secretary of Transportation from further prescribing rules, regulations, guidelines, or legislative text; or (2) the Signatories from enacting other provisions to amend the Compact if such provisions are consistent with this Act and the Secretary approves any such provisions prior to enactment. 104. Approval Congress shall approve of the language issued by the Secretary and enacted by the Signatories pursuant to section 102. II New Washington Metropolitan Area Transit Authority Compact 201. Additional resources for capital projects for Washington Metropolitan Area Transit Authority (a) Authorization Subject to the provisions of this section, and notwithstanding the provisions of the Passenger Rail Investment and Improvement Act of 2008 ( Public Law 110–432