Streets and Highways Code § 31924
CHAPTER 11. Substitution of Other Lands, Property or Rights of Way for Those Previously Acquired
At the hearing the legislative body may by resolution propose a modification of the substitution. Said resolution shall describe the proposed modification, shall specify a time for hearing thereon and shall be published once at least 15 days before the hearing in the same newspaper in which the resolution proposing to order the making of a substitution was published.