Part VII · Adversary Proceedings Rule 7021. Misjoinder and Non-Joinder of Parties Version effective 2014 Rule 21 F.R.Civ.P. applies in adversary proceedings. added in current removed in current Compared to current version (2025). Rule 21 F.Fed. R. Civ. P. 21 applies in an adversary proceedings. (As amended Apr. 2, 2024, eff. Dec. 1, 2024.)