Cal. Health & Safety Code § 11832.18
(a) If a program is alleged to be in violation of Section 11832.7, the department shall conduct a site visit to investigate the allegation. If the department finds evidence that the program is providing treatment, recovery, detoxification, or medication-assisted treatment services without a certification, the department shall issue a written notice to the program stating that it is operating in violation of Section 11832.7. The notice shall include all of the following: