Australian Capital Territory Current Regulations Australian Capital Territory Current Regulations(1) If a plaintiff seeks relief against a defendant who is liable jointly and severally with someone else, the other person need not be made a defendant to the proceeding.
(2) If people are liable jointly, but not severally, and a plaintiff seeks relief in a proceeding against some but not all of them, the court may stay the proceeding until the others are included as defendants.
Note Pt 6.2 (Applications in proceedings) applies to an application for a stay.