Cal. Health & Safety Code § 123375

(a) Except as otherwise provided in subdivision (b), no person shall sell, offer for sale, give away, distribute, or otherwise furnish materials intended to determine the presence of pregnancy, unless that person has obtained a certificate of acceptability from the department declaring that the materials have been approved as to efficacy and safety by the department.
(b) Subdivision (a) shall not apply to materials intended to determine the presence of pregnancy, that are sold, offered for sale, given away, distributed, or otherwise furnished to a physician and surgeon licensed to practice in this state, a pharmacist licensed to practice in this state, a licensed primary care clinic, a licensed health facility, or a public health agency.
(c) Any person other than a person described in subdivision (b) who intends to sell, offer for sale, give away, distribute or otherwise furnish materials intended to determine the presence of pregnancy shall first make application to the state department for certification of the materials. The department shall also require that an application for certification shall be accompanied by samples of any materials that are the subject of the application as the department may reasonably require.
Any violation of this section is a misdemeanor.