Public Contract Code § 20462
ARTICLE 27. Legislative Bodies—Improvement Act of 1911
If any contractor disputes the correctness or validity of any claim filed pursuant to this chapter, the city or superintendent of streets may permit the contractor to deliver to the city or superintendent of streets a bond satisfactory to said city or superintendent of streets executed by the contractor and some corporation authorized to issue surety bonds in a penal sum equal to one and one-fourth times the amount of the claim.