{"data":{"id":"us/40-cfr-table-4-to-subpart-qqq-of-part-63","jurisdiction":"us","citation":"40 CFR Table 4 to Subpart QQQ of Part 63","heading":"Table 4 to Subpart QQQ of Part 63—Compliance Dates for Amendments Being Promulgated on May 13, 2024","body":"Table 4 to Subpart QQQ of Part 63—Compliance Dates for Amendments Being Promulgated on May 13, 2024\nIf the construction/reconstruction date is . . . Then the owner or operator must comply with . . . And the owner or operator must achieve compliance . . .\nOn or before January 11, 2022 Requirements for existing sources in §§ 63.1444(f)(2) and (3), (l); 63.1446; 63.1449; 1 63.1450(a) and (d); and 63.1451 through 63.1456, as applicable On or before May 13, 2025.\nRequirements for existing sources in §§ 63.1444(h); 63.1449; 1 63.1450(e); and 63.1451 through 63.1456, as applicable On or before May 13, 2026.\nAfter January 11, 2022 Requirements for new sources in §§ 63.1444(e)(1) and (2), (f)(2) and (3), (h), (m); 63.1446; 63.1449; 1 63.1450(a), (d), (e); and 63.1451 through 63.1456, as applicable Upon initial startup or May 13, 2024, whichever is later.\nOn or before July 24, 2023 Requirements for existing sources in §§ 63.1444(g); 63.1449; 1 63.1450(a); and 63.1451 through 63.1456, as applicable On or before May 13, 2027.\nRequirements for existing sources in §§ 63.1444(o); 63.1449; 1 63.1450(f); and 63.1451 through 63.1456, as applicable On or before May 13, 2025.\nRequirements for existing sources in §§ 63.1444(q); 63.1449; 1 63.1450(a), (g); and 63.1451 through 63.1456, as applicable On or before November 12, 2024.\nAfter July 24, 2023 Requirements for new sources in §§ 63.1444(o), (q); 63.1449; 1 63.1450(a), (f), (g); and 63.1451 through 63.1456, as applicable Upon initial startup or May 13, 2024, whichever is later.\nOn or before May 13, 2024 Requirements for existing sources in §§ 63.1444(p); 63.1449; 1 63.1450(g); and 63.1451 through 63.1456, as applicable On or before May 13, 2027.\n1 Section 63.1449(a) provides that any necessary performance test is conducted within 180 days of the compliance date.","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 QQQ—National Emission Standards for Hazardous Air Pollutants for Primary Copper Smelting"],"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":"4512c5e15e2d8def0f234123941c58f5bc5741bf3fc26a31ba48c40335e61955","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-3-to-subpart-qqq-of-part-63","next":"us/40-cfr-figure-1-to-subpart-qqq-of-part-63"},"notice":"GroundRules: Original legal text. Not legal advice."}