Cal. R. 3.1700
A prevailing party who claims costs must serve and file a memorandum of costs within 15 days after the date of service of the notice of entry of judgment or dismissal by the clerk under Code of Civil Procedure section 664.5 or the date of service of written notice of entry of judgment or dismissal, or within 180 days after entry of judgment, whichever is first. The memorandum of costs must be verified by a statement of the party, attorney, or agent that to the best of his or her knowledge the items of cost are correct and were necessarily incurred in the case.
A party seeking a default judgment who claims costs must request costs on the Request for Entry of Default (Application to Enter Default) (form 982(a)(6) CIV-100) at the time of applying for the judgment.
(Subd (a) amended effective January 1, 2016; previously amended effective January 1, 2007, and July 1, 2007.)
Any notice of motion to strike or to tax costs must be served and filed 15 days after service of the cost memorandum. If the cost memorandum was served by mail, the period is extended as provided in Code of Civil Procedure section 1013. If the cost memorandum was served electronically, the period is extended as provided in Code of Civil Procedure section 1010.6(a)(4).
Unless objection is made to the entire cost memorandum, the motion to strike or tax costs must refer to each item objected to by the same number and appear in the same order as the corresponding cost item claimed on the memorandum of costs and must state why the item is objectionable.
The party claiming costs and the party contesting costs may agree to extend the time for serving and filing the cost memorandum and a motion to strike or tax costs. This agreement must be confirmed in writing, specify the extended date for service, and be filed with the clerk. In the absence of an agreement, the court may extend the times for serving and filing the cost memorandum or the notice of motion to strike or tax costs for a period not to exceed 30 days.
After the time has passed for a motion to strike or tax costs or for determination of that motion, the clerk must immediately enter the costs on the judgment.
(Subd (b) amended effective January 1, 2016; previously amended effective January 1, 2007.)
Cal. R. Ct. 3.1700