California Code, Civil Code - CIV § 714.5

The covenants, conditions, and restrictions or other management documents shall not prohibit the sale, lease, rent, or use of real property on the basis that the structure intended for occupancy on the real property is constructed in an offsite facility or factory, and subsequently moved or transported in sections or modules to the real property.  Nothing herein shall preclude the governing instruments from being uniformly applied to all structures subject to the covenants, conditions, and restrictions or other management documents.

This section shall apply to covenants, conditions, and restrictions or other management documents adopted on and after the effective date of this section.