"Prior to the amendment, ERISA disclosure requirements were limited to furnishing actuarial reports, financial reports and applications for extension of amortization periods filed with the Secretary of the Treasury to plan participants or beneficiaries, employer representatives or any employer obligated to contribute to the plan. The MPRA completely amends the disclosure requirements and amends provisions relating to limitations of disclosure, record retention and civil enforcement. The new disclosure requirements require Plan administrators to furnish [an] expanded list of documents of which they have had possession for at least 30 days and less than six years[.]"