{"data":{"id":"us/40-cfr-97.803","jurisdiction":"us","citation":"40 CFR 97.803","heading":"Measurements, abbreviations, and acronyms.","body":"Measurements, abbreviations, and acronyms used in this subpart are defined as follows:\nBtu—British thermal unit\nCO2—carbon dioxide\nCSAPR—Cross-State Air Pollution Rule\nH2O—water\nhr—hour\nkWh—kilowatt-hour\nlb—pound\nmmBtu—million Btu\nMWe—megawatt electrical\nMWh—megawatt-hour\nNOX—nitrogen oxides\nO2—oxygen\nppm—parts per million\nscfh—standard cubic feet per hour\nSIP—State implementation plan\nSO2—sulfur dioxide\nTR—Transport Rule\nyr—year","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 97—FEDERAL NOX BUDGET TRADING PROGRAM, CAIR NOX AND SO2 TRADING PROGRAMS, CSAPR NOX AND SO2 TRADING PROGRAMS, AND TEXAS SO2 TRADING PROGRAM","Subpart EEEEE—CSAPR NOX Ozone Season Group 2 Trading Program"],"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":"b8346392d17af370b91faecde3ba50d245b09917f0d8bfd9bcc97213a4151f4f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-97.802","next":"us/40-cfr-97.804"},"notice":"GroundRules: Original legal text. Not legal advice."}