; and (2) supporting full compliance with the State and local codes. (b) State and Indian tribe certification of building energy code updates (1) Review and updating of codes by each State and Indian tribe (A) In general Not later than 3 years after the date on which a model building energy code is published, each State or Indian tribe shall certify whether or not the State or Indian tribe, respectively, has reviewed and updated the energy provisions of the building code of the State or Indian tribe, respectively. (B) Demonstration The certification shall include a statement of whether or not the energy savings for the code provisions that are in effect throughout the State or Indian tribal territory meet or exceed— (i) the energy savings of the most recently published model building energy code; or (ii) the energy savings of the existing Energy code previously in effect. (C) No model building energy code update If a model building energy code is not updated, each State or Indian tribe shall not be subject to any certification requirements. (2) Validation by Secretary Not later than 90 days after a State or Indian tribe certification under paragraph (1), the Secretary shall— (A) determine whether the code provisions of the State or Indian tribe, respectively, meet the criteria specified in paragraph (1); (B) determine whether the certification submitted by the State or Indian tribe, respectively is complete