Cal. SHC § 6501

The treasurer shall mail a notice of sale to the owner of any property to be sold for nonpayment of either principal or interest upon any delinquent bond. The notice shall be sent by certified mail to the owner of the property as shown on the last equalized assessment roll and to any person whose name appears as an owner on the records of the county assessor’s office which the county assessor will use to prepare the next assessor’s roll. The notice shall be substantially in the following form and the first paragraph shall be printed in at least 14-point boldface type:

IMPORTANT NOTICE
Your property located at
(address)
will soon be sold by the city (or county) unless you pay what you
owe for ____ improvement made in your area. To obtain
information on how to prevent the sale of your property,
immediately call the foreclosure clerk at the city (or county)
treasurer’s office. The telephone number is ____ to arrange for
payment. For more detailed information regarding this matter,
read the following:
“Notice of Sale of Property Delinquent for
Nonpayment of ____ Improvement Bond
“You are hereby notified that Bond ____, Series ____,
representing a lien against Parcel Number ____ (or the legal
description of the property in said bond) located at ____, for
an improvement in the City (or County) of ____, is
delinquent. Unless the amount of the unpaid principal on the
bond, together with interest, penalties, and recordation fee for
filing notice of pendancy, is paid to the city (or county) treasurer
on or before six months after the mailing of this notice, the date
of which being this ____ day of ____, 19__, or unless
the bond is reinstated as provided by Section 6631, the
undersigned will proceed to advertise and sell the lot or parcel
of land in the manner prescribed by law to satisfy the amount of
the bond, interest, penalties, and costs.”