Cal. Gov. Code § 39567.1
As an alternative to posting notice of the resolution and notice of the meeting when objections will be heard, the legislative body may direct the city clerk to mail written notice of the proposed abatement to all persons owning property described in the resolution. The city clerk shall cause such written notice to be mailed to each person to whom such described property is assessed in the last equalized assessment roll available on the date the resolution was adopted by the legislative body.
In cities where the county assessor performs the functions of city assessor, the county assessor, at the request of the city clerk, shall within 10 days thereafter mail to the city clerk a list of the names and addresses of all of the persons owning property described in the resolution. The address of the owners shown on the assessment roll shall be conclusively deemed to be the proper address for the purpose of mailing such notice. The city shall reimburse the county for the actual cost of furnishing such list and the cost shall be a part of the costs of abatement.
The notices mailed by the city clerk shall be mailed at least five days prior to the time for hearing objections by the legislative body.
The notices mailed by the city clerk shall be substantially in the form provided by Section 39566, except, that notices shall be signed by the city clerk and the heading of the notice need not comply with Section 39565.
Ca. Gov. Code § 39567.1