California Code
CHAPTER 4 - Interpreters and Translators
Section 754.5.

754.5. Whenever an otherwise valid privilege exists between an individual who is deaf or hard of hearing and another person, that privilege is not waived merely because an interpreter was used to facilitate their communication.

(Amended by Stats. 2016, Ch. 94, Sec. 8. (AB 1709) Effective January 1, 2017.)