{"data":{"id":"us/40-cfr-table-4-to-subpart-oooob-of-part-60","jurisdiction":"us","citation":"40 CFR Table 4 to Subpart OOOOb of Part 60","heading":"Table 4 to Subpart OOOOb of Part 60—Required Minimum SO2 Emission Reduction Efficiency (Zc)","body":"H2 S content of acid gas (Y), % Sulfur feed rate (X), LT/D\n2.0 ≤ X ≤ 5.0 5.0 \u003c X ≤ 15.0 15.0 \u003c X ≤ 300.0 X \u003e 300.0\nY ≥ 50 74.0 85.35X0.0144 Y0.0128 or 99.9, whichever is smaller.\n20 ≤ Y \u003c 50 74.0 85.35X0.0144 Y0.0128 or 97.5, whichever is smaller 97.5\n10 ≤ Y \u003c 20 74.0 85.35X0.0144 Y0.0128 or 90.8, whichever is smaller 90.8 90.8\nY \u003c 10 74.0 74.0 74.0 74.0","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 OOOOb—Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction, Modification or Reconstruction Commenced After December 6, 2022"],"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":"7d1fdf8d9e5591c52993ecfe0e6d91a7e5cf2b4998f714817ba11db0d2f04e3a","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-3-to-subpart-oooob-of-part-60","next":"us/40-cfr-table-5-to-subpart-oooob-of-part-60"},"notice":"GroundRules: Original legal text. Not legal advice."}