New Federal Rule Will Help Discourage Meritless Claims In Multidistrict Litigation

On December 1, 2025, Federal Rule of Civil Procedure 16.1 took effect, providing judges a roadmap for initial case management of multidistrict litigation ("MDLs") and paving the way for early challenges to meritless claims.

After years of concern regarding ballooning MDL dockets, the U.S. Supreme Court adopted Federal Rule of Civil Procedure 16.1, which took effect on December 1, 2025. Rule 16.1 is the first Rule to specifically address MDL case management. Although Rule 16.1 still provides courts with significant discretion, it is expected to encourage streamlining and efficiency of the MDL case management process and reduce frivolous litigation.

Rule 16.1 provides that transferee courts "should schedule an initial management conference to develop an initial plan for orderly pretrial activity in the MDL proceedings." Fed. R. Civ. P. 16.1(a). The Rule directs parties to meet before the initial management conference and submit a report to the court containing