Cal. Code Regs. tit. 25, § 6188
(b) The notice shall include the following:
(6) A statement that, if arrangements are made to rent the property to an owner or his tenant for a short term or for a period subject to termination by the public entity on short notice, the rental will not exceed the lesser of the fair rental value of the property to short term occupier or the pro rata portion of the fair rental value for a typical rental period.
If the owner or tenant is an occupant of a dwelling, the rental for the dwelling shall be within his financial means. (See subsection 6008(c).)