Cal. Health & Safety Code § 118150

(b) Each person operating a medical waste treatment facility pursuant to a hazardous waste facilities permit or grant of interim status pursuant to Article 9 (commencing with Section 25200) of Chapter 6.5 of Division 20, as of January 1, 1991, shall be considered to have the medical waste permit required by this article until January 1, 1992, unless the enforcement agency with jurisdiction over its activities has taken final action prior to January 1, 1992, on an application for a permit pursuant to this article.

(c) Each medical waste facility subject to subdivision (b) shall operate in accordance with the standards and procedures contained in this chapter, and on and after January 1, 1991, is not subject to the standards and procedures contained in Chapter 6.5 (commencing with Section 25100) of Division 20.