Colorado courts often look to the Federal Rules of Civil Procedure to interpret Colorado Rules with a substantially similar Federal counterpart. (See Garcia v. Schneider Energy Services, Inc., 287 P. 3d 112 – Colo: Supreme Court 2012) (offering a detailed review and analysis of Colorado’s Rule 15 and comparing and contrasting Federal Rule 15).
The US Supreme Court transmitted to Congress on April 29, 2015 changes to the following Federal Rules of Civil Procedure to become effective December 1, 2015 absent contrary Congressional Action:
Civil Rules 1, 4, 16, 26, 30, 31, 33, 34, 37, and 55, and abrogation of Rule 84 and the Appendix of Forms.
The District of Colorado’s Local Rules have been amended as well, but only minimally, and mostly to reflect changes in electronic case filing.
For a copy of the revised rules as submitted to Congress, click 2015 Amendments to FRCP.
For a red-lined copy, click Proposed 2014 Amendments.