California Code, Corporations Code - CORP § 25116

(a) An evidence of indebtedness issued pursuant to a qualification under this chapter or Chapter 3 (commencing with Section 25120), and the purchasers or holders thereof, shall be exempt from the usury provisions of the Constitution, subject to compliance by the issuer and purchaser with the terms and requirements that may be imposed by the commissioner as a condition of the qualification. This section creates and authorizes a class of transactions and persons pursuant to Section 1 of Article XV of the Constitution.

(b) Any evidence of indebtedness issued in compliance with this section shall be entitled to the benefits of the usury exemption contained in this section regardless of whether subsequent to its issuance the evidence of indebtedness is determined by a court of competent jurisdiction to be a “security.”