Amendments to the following Federal Rules of Civil Procedure became effective on December 1, 2015: 1, 4, 16, 26, 30, 31, 33, 34, 37, and 55. Rule 84 and the Appendix of Forms were abrogated.

Additional information about these amendments is available at FJC.gov:

Amendments to the Federal Rules of Civil Procedure, which became effective on December 1, 2015, foster more cost-effective discovery through cooperation, proportionality, early and active case management, and considerations of electronically stored information (ESI).

This package of materials was transmitted to Congress on April 29, 2015, concerning amendments to the Federal Rules of Practice and Procedure to become effective on December 1, 2015.