CPR Part 19 deals with Group Litigation Orders. CPR 46.6 provides that unless the court otherwise orders, group litigants are severally (not jointly) liable for an equal proportion of the “common costs”. (“Common costs” are defined in CPR 46.6(2).) In addition, a group litigant is liable for the individual costs of his or her own claim. A group litigant coming late to the group register may be ordered to be liable for a proportion of the costs incurred before that litigant’s name is entered on the register (CPR 46.6(6)). The Part 19B Practice Direction (para 16.2) provides that the Costs Judge will apportion the amounts of common costs and individual costs, if the court has not already done so.