ERISA and its implementing regulations specify the information that must be set out in a summary plan description (SPD), including:
The name of the employee benefit plan.
Eligibility requirements for participation in the plan.
Benefits available under the plan and how benefits are paid.
How to file a claim for benefits.
A statement of the participants' rights under ERISA.
Among other requirements, an SPD must be:
Written in plain language so that it can be understood by the average plan participant.
Provided to plan participants by the plan administrator free of charge.
If the terms of a plan change, participants must be informed, either through a revised summary plan description or a summary of material modification (SMM).