{"data":{"id":"us/40-cfr-57.801","jurisdiction":"us","citation":"40 CFR 57.801","heading":"Purpose and scope.","body":"(a) This subpart shall govern all proceedings for the waiver of the interim requirement that each NSO provide for the use of constant controls.\n(b) In the absence of specific provisions in this subpart, and where appropriate, questions arising at any stage of the proceeding shall be resolved at the discretion of the Presiding Officer or the Administrator, as appropriate.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 57—PRIMARY NONFERROUS SMELTER ORDERS","Subpart H—Waiver of Interim Requirement for Use of Continuous Emission Reduction Technology"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"331d6741a507ef28d5806d6abb08cb6949279a55d16a57ea6e2d018531df1a3f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-57.705","next":"us/40-cfr-57.802"},"notice":"GroundRules: Original legal text. Not legal advice."}