the Administrator shall, as the Administrator determines necessary to assist States, permitting authorities, and permit applicants, concurrently publish final regulations and guidance for implementing the national ambient air quality standard, including information relating to submission and consideration of a preconstruction permit application under the new or revised national ambient air quality standard. (3) Applicability of national ambient air quality standard to preconstruction permitting If the Administrator fails to publish the final regulations and guidance referred to in paragraph (2) that include information relating to submission and consideration of a preconstruction permit application under a new or revised national ambient air quality standard concurrently with the national ambient air quality standard, the new or revised national ambient air quality standard shall not apply to the review and disposition of a pre­con­struc­tion permit application until the date on which the Administrator publishes the final regulations and guidance. (4) Rules of Construction Nothing in this subsection— (A) precludes the Administrator from issuing regulations and guidance to assist States, permitting authorities, and permit applicants in implementing a national ambient air quality standard after the publication of final regulations and guidance for the national ambient air quality standard under paragraph (2)