{"data":{"id":"us/40-cfr-80.9","jurisdiction":"us","citation":"40 CFR 80.9","heading":"Rounding.","body":"(a) Test results and calculated values reported to EPA under this part must be rounded according to 40 CFR 1090.50(a) through (d).\n(b) Calculated values under this part may only be rounded when reported to EPA.\n(c) Reported values under this part must be submitted using forms and procedures specified by EPA.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 80—REGULATION OF FUELS AND FUEL ADDITIVES","Subpart A—General Provisions"],"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":"9e314bf4548123ba56975cb37a3941fcc775ee14ea0bf5b337a65c1e5e2f3324","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-80.8","next":"us/40-cfr-80.10"},"notice":"GroundRules: Original legal text. Not legal advice."}