California Code, Business and Professions Code - BPC § 2511

(a) No person, other than one who has been licensed to practice midwifery by the board, shall hold himself or herself out as a licensed midwife, or use any other term indicating or implying that he or she is a licensed midwife.

(b) Nothing in this article shall be construed to limit in any manner the practice of an individual to whom a certificate has been issued pursuant to Article 2.5 (commencing with Section 2746) of Chapter 6, or to prevent an individual to whom a certificate has been issued pursuant to Article 2.5 (commencing with Section 2746) of Chapter 6 from holding himself or herself out as a certified nurse-midwife, nurse midwife, midwife, or from using the initials “CNM.”