{"data":{"id":"us/40-cfr-60.264","jurisdiction":"us","citation":"40 CFR 60.264","heading":"Emission monitoring.","body":"(a) The owner or operator subject to the provisions of this subpart shall install, calibrate, maintain and operate a continuous monitoring system for measurement of the opacity of emissions discharged into the atmosphere from the control device(s).\n(b) For the purpose of reports required under § 60.7(c), the owner or operator shall report as excess emissions all six-minute periods in which the average opacity is 15 percent or greater.\n(c) The owner or operator subject to the provisions of this subpart shall submit a written report of any product change to the Administrator. Reports of product changes must be postmarked not later than 30 days after implementation of the product change.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 60—STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES","Subpart Z—Standards of Performance for Ferroalloy Production Facilities"],"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":"ae38b1a8ec286ca631e01fb2f23b658aeef3f28595b087aba1c0f3d8f4c4e06f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-60.263","next":"us/40-cfr-60.265"},"notice":"GroundRules: Original legal text. Not legal advice."}