Cal. Rev. & Tax. Code § 1606
(a)
(1) Any applicant for a change of an assessment on the local roll or the assessor, in those cases where the assessed value of the property involved, as shown on the current assessment roll, exceeds one hundred thousand dollars ($100,000) without regard to any exemptions, may initiate an exchange of information with the other party by submitting the following data to the other party and the clerk in writing:
(b)
(1) Notwithstanding any limitation on assessed value contained in subdivision (a), if the initiating party has submitted the data required by subdivision (a) within the specified time, the other party shall submit to the initiating party and the clerk the following data:
(c)