California Civil Code §1798.83 (Title 1.81. Customer Records):
Hence, a Website directed to California Customers may wisely add at least a statement of this kind:
Link: Your California Privacy Rights
Text: California Civil Code Section 1798.83 permits our visitors who are California residents to request certain information regarding our disclosure of personal information to third parties for their direct marketing purposes. To make such a request, please send an email to firstname.lastname@example.org, or write to us at: x, or call us at: ().