{"data":{"id":"us/40-cfr-63.9302","jurisdiction":"us","citation":"40 CFR 63.9302","heading":"What operating limits must I meet?","body":"(a) For any new or reconstructed affected source on which you use add-on controls, you must meet the operating limits specified in Table 2 to this subpart. These operating limits must be established during the performance test according to the requirements in § 63.9324. You must meet the operating limits at all times after you establish them.\n(b) If you use an add-on control device other than those listed in Table 2 to this subpart, or wish to monitor an alternative parameter and comply with a different operating limit, you must apply to the Administrator for approval of alternative monitoring under § 63.8(f).","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 PPPPP—National Emission Standards for Hazardous Air Pollutants for Engine Test Cells/Stands"],"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":"a4e71e6de91a8281ff1dda8587881a19c59678ac3cf397167b99b3074830a787","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-63.9301","next":"us/40-cfr-63.9305"},"notice":"GroundRules: Original legal text. Not legal advice."}