{"data":{"id":"us/40-cfr-63.9796","jurisdiction":"us","citation":"40 CFR 63.9796","heading":"By what date must I conduct performance tests?","body":"You must conduct performance tests within 180 calendar days after the compliance date that is specified for your source in § 63.9786 and according to the provisions in § 63.7(a)(2).","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart SSSSS—National Emission Standards for Hazardous Air Pollutants for Refractory Products Manufacturing"],"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":"0166a10a6ff01b52543680fd3cc0fb0f42eb23f71d1ddc7c6cf13dab358762be","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.9794","next":"us/40-cfr-63.9798"},"notice":"GroundRules: Original legal text. Not legal advice."}