California Code, Streets and Highways Code - SHC § 8740.3

(a) When the apportionment has been made, an application signed by all persons owning an interest in the original lot or parcel of land may be filed with the street superintendent requesting that the assessment as apportioned be recorded.

(b) The street superintendent shall send to the underwriter or other original purchaser of any bonds which may be outstanding a notice, by certified or registered mail, that an apportionment of an assessment has been made and the numbers and amounts thereof and that, unless a request for a hearing is received within 14 days from the date of mailing of the notice, the apportioned assessments shall be recorded.  If a request for a hearing is received, a report shall be filed and hearing shall be scheduled, noticed, and held in accordance with Part 10 (commencing withSection 8730).