California Code, Health and Safety Code - HSC § 25200.7.5

(a) On or before December 31, 2015, the department shall issue a final permit decision on an application for a hazardous waste facilities permit submitted to the department by a facility operating under a grant of interim status pursuant to Section 25200.5 on or before January 1, 1986, by either issuing a final permit pursuant to the application or a final denial of application.

(b) Interim status granted pursuant to Section 25200.5 for a facility described in subdivision (a) shall terminate on December 31, 2015, or on the date on which the department issues a final permit decision on the application for a hazardous waste facilities permit, whichever is earlier. If a person petitions the department for review of a final permit decision to approve a hazardous waste facilities permit or a facility currently operating under interim status, then the interim status shall not terminate until final administrative disposition of the petition, even if the final administrative disposition occurs after December 31, 2015.

(c) Except as provided in subdivision (b), interim status granted for a facility before January 1, 2015, shall terminate on January 1, 2020, or on the date on which the department issues a final permit decision on the application for a hazardous waste facilities permit, whichever is earlier.

(d) Interim status granted for a facility on or after January 1, 2015, shall terminate five years from the date on which the interim status is granted or on the date on which the department issues a final permit decision on the application for a hazardous waste facilities permit, whichever is earlier.