California Code, Government Code - GOV § 59592

When any local agency, person, or corporation advances money for the payment or retirement of the original bonds of nonconsenting holders, the legislative body may deliver at par all or part of the new bonds which are not to be delivered to consenting bondholders to such local agency, person, or corporation, or sell at par all or part of such bonds, and from the proceeds wholly or partly reimburse such local agency, person, or corporation.  The legislative body may contract to make such sale or delivery.