Earlier U.S. employee-benefits disclosure law that required reporting and transparency before ERISA became the dominant private-plan framework.
The Welfare and Pension Plans Disclosure Act (WPPDA) was an earlier U.S. law that required disclosure and reporting for private employee benefit plans before ERISA replaced it as the main framework.
It matters because retirement-plan regulation did not begin fully formed with ERISA. The WPPDA was part of the earlier shift toward participant information, federal oversight, and plan transparency.
The WPPDA matters because it helps explain how pension regulation evolved from disclosure-first oversight into the broader fiduciary and funding framework used later.
That makes it important mostly as a historical law and compliance predecessor.