Ariz. Rev. Stat. § 12-2508
On motion made not later than one year after a judgment imposing joint and several liability and determining contribution rights is entered, the court shall determine whether all or part of a tortfeasor's contribution share under section 12-2502 is uncollectible from that tortfeasor. If a contribution share is totally or partially uncollectible, the court shall redetermine the contribution shares of the other tortfeasors so that the uncollectible contribution amount is paid, based on the ratio of the percentages of the contribution shares of the other tortfeasors. The court's order redetermining the contribution shares shall include a judgment for the uncollectible amount against the tortfeasor whose share is totally or partially uncollectible and in favor of the other tortfeasors.
A.R.S. § 12-2508