{"data":{"id":"us/40-cfr-60.2865","jurisdiction":"us","citation":"40 CFR 60.2865","heading":"How must I monitor opacity for air curtain incinerators?","body":"(a) Use Method 9 of appendix A of this part to determine compliance with the opacity limitation.\n(b) Conduct an initial test for opacity as specified in § 60.8 no later than 180 days after your final compliance date.\n(c) After the initial test for opacity, conduct annual tests no more than 12 calendar months following the date of your previous test.","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 DDDD—Emissions Guidelines and Compliance Times for Commercial and Industrial Solid Waste Incineration Units"],"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":"c39861de5e98d42b7d273cedb5f746c97324db93028c016b5a006ee41fcfe519","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-60.2860","next":"us/40-cfr-60.2870"},"notice":"GroundRules: Original legal text. Not legal advice."}