Cal. Bus. & Prof. Code § 14247
(a) Subject to the principles of equity, an owner of a mark that is famous and distinctive, whether inherently or through acquired distinctiveness, shall be entitled to an injunction against another person’s commercial use of a mark or trade name, if such use begins after the mark has become famous and is likely to cause dilution of the famous mark, and to obtain such other relief as is provided in this section. For purposes of this subdivision, a mark is famous if it is widely recognized by the general consuming public of this state, or by a geographic area of this state, as a designation of source of the goods or services of the mark’s owner. In determining whether a mark is famous, a court may consider factors including, but not limited to, all of the following:
(b) In an action brought under this section, the owner of a famous mark shall be entitled to injunctive relief throughout the geographic area in which the mark is found to have become famous prior to commencement of the junior use, but not beyond the borders of this state. If the person against whom injunctive relief is sought willfully intended to cause dilution of the famous mark, the owner shall also be entitled to the remedies set forth in Section 14250, subject to the discretion of the court and the principles of equity. The following shall not be actionable under this section:
(1) Any fair use, including a nominative or descriptive fair use, or facilitation of such fair use, of a famous mark by another person other than as a designation of source for the person’s own goods or services, including use in connection with either of the following: