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 Practice and Procedure: Civil Rules 2015 (video tutorials)
• Amendments to the Federal Rules of Practice and Procedure 2015—Transmittal to Congress (document)
• Amendments to the Federal Rules of Practice and Procedure (webpage)

Information about rules amendments and the rule-making process is available on uscourts.gov at United States Courts Rules & Policies.