California Code, Penal Code - PEN § 1203.74

Upon a determination that, in his or her opinion, staff and financial resources available to him or her are insufficient to meet his or her statutory or court ordered responsibilities, the probation officer shall immediately notify the presiding judge of the superior court and the board of supervisors of the county, or city and county, in writing.  The notification shall explain which responsibilities cannot be met and what resources are necessary in order that statutory or court ordered responsibilities can be properly discharged.