This bill amends the Clean Air Act, requiring the Environmental Protection Agency (EPA) Administrator to publish final regulations and guidance for implementing any new or revised national ambient air quality standard (NAAQS). This crucial guidance, which must include information for submitting and considering preconstruction permit applications, must be published **concurrently** with the final rule establishing or revising the standard. The objective is to provide clarity and assistance to States, permitting authorities, and permit applicants. A significant provision states that if the Administrator fails to publish this concurrent guidance specifically for preconstruction permits, the new or revised NAAQS **shall not apply** to those permit applications until the required regulations and guidance are made available. Additionally, the bill includes a targeted exemption for the **2024 Primary Annual Particulate Matter 2.5 Standard**. This specific standard will not apply to preconstruction permit applications if they are determined complete by the final area designation date or if a public notice for a draft permit is issued within 60 days of that designation, aiming to prevent delays in infrastructure projects due to immediate regulatory changes.