- Rule 17 – Plaintiff and Defendant; Capacity; Public Officers
- Rule 18 – Joinder of Claims
- Rule 19 – Required Joinder of Parties
- Rule 20 – Permissive Joinder of Parties
- Rule 21 – Misjoinder and Nonjoinder of Parties
- Rule 22 – Interpleader
- Rule 23 – Class Actions
- Rule 23.1 – Derivative Actions
- Rule 23.2 – Actions Relating to Unincorporated Associations
- Rule 24 – Intervention
- Rule 25 – Substitution of Parties
All Federal Rules of Civil Procedure