California Code, Code of Civil Procedure - CCP § 877.5

(a) Where an agreement or covenant is made which provides for a sliding scale recovery agreement between one or more, but not all, alleged defendant tortfeasors and the plaintiff or plaintiffs:

(b) As used in this section, a “sliding scale recovery agreement” means an agreement or covenant between a plaintiff or plaintiffs and one or more, but not all, alleged tortfeasor defendants, which limits the liability of the agreeing tortfeasor defendants to an amount which is dependent upon the amount of recovery which the plaintiff is able to recover from the nonagreeing defendant or defendants. This includes, but is not limited to, agreements within the scope of Section 877, and agreements in the form of a loan from the agreeing tortfeasor defendant or defendants to the plaintiff or plaintiffs which is repayable in whole or in part from the recovery against the nonagreeing tortfeasor defendant or defendants.

(c) No sliding scale recovery agreement is effective unless, at least 72 hours prior to entering into the agreement, a notice of intent to enter into an agreement has been served on all nonsignatory alleged defendant tortfeasors.However, upon a showing of good cause, the court or a judge thereof may allow a shorter time. The failure to comply with the notice requirements of this subdivision shall not constitute good cause to delay commencement of trial.