{"data":{"id":"us/40-cfr-63.5540","jurisdiction":"us","citation":"40 CFR 63.5540","heading":"By what date must I conduct a performance test or other initial compliance demonstration?","body":"(a) You must conduct performance tests or other initial compliance demonstrations no later than 180 calendar days after the compliance date that is specified for your source in § 63.5495 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 UUUU—National Emission Standards for Hazardous Air Pollutants for Cellulose 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":"0288dcdde6d7b4dd2dcfe46a46e479bfa75cbdfbe799e63670864ac478972a03","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.5535","next":"us/40-cfr-63.5541"},"notice":"GroundRules: Original legal text. Not legal advice."}