The Employee Retirement Income Security Act generally requires that plan participants get copies of summary plan descriptions, plan documents and annual reports when requested. ERISA Section 104(b)(4) provides that the administrator shall, upon written request of any participant or beneficiary, furnish a copy of the latest updated summary, plan description, and the latest annual report, any terminal report, the bargaining agreement, trust agreement, contract, or other instruments under which the plan is established or operated.
There is even an enforcement provision that subjects the administrator to penalties if they fail to provide requested documentation. ERISA Section 502(c)(1) establishes that an administrator who fails to respond to a participants request for certain plan materials within 30 days could be subject to penalties of up to $110 per day for each day past the 30-day response time if the documents are not provided.