Section 471. Undertaking for support and cash deposits

The court may in its
  discretion  require  either a written undertaking with sufficient surety
  approved by the court or may require  that  cash  be  posted  to  secure
  compliance by the respondent with the order for support for such period.
  Such  undertaking  shall  be  for a definite period, not to exceed three
  years, and the required amount of  the  principal  of  such  undertaking
  shall not exceed the total payments for support required for three years
  and  shall  be so stated in the order for support. After hearing and for
  good cause shown, the court may extend  an  undertaking  requirement  by
  requiring  a  new  undertaking  similar to the original undertaking. The
  respondent may deposit cash with the clerk, or when the court so orders,
  with the support collection unit designated by  the  appropriate  social
  services  district,  when the order for support directs payments to such
  unit. When such cash has been deposited with the support collection unit
  and the respondent fails to make any  payment,  when  due,  within  such
  period,  payment  shall  be  made  by the support collection unit to the
  petitioner out of such cash. When cash is posted as security, as  herein
  provided,  the  person  or  persons  so  posting  such cash shall at the
  expiration of the period for which such security shall have been ordered
  be entitled to the return of such cash less any amount which shall  have
  been  paid  therefrom  to  the  petitioner  by  reason of any default or
  defaults in payments on the part of the  respondent.  The  form  of  the
  undertaking and the form and manner of justification of the surety shall
  conform to the rules of court.