{"data":{"id":"us/40-cfr-1090.255","jurisdiction":"us","citation":"40 CFR 1090.255","heading":"Certified pentane standards.","body":"Pentane designated as certified pentane under § 1090.1000(f) for use under the pentane blending provisions of § 1090.1320(b) must meet the following per-gallon standards:\n(a) Pentane content. Minimum 95 volume percent.\n(b) Benzene content. Maximum 0.03 volume percent.\n(c) Sulfur content. Maximum 10 ppm.\n(d) Chemical composition. Be composed solely of carbon, hydrogen, oxygen, nitrogen, and sulfur.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER U—AIR POLLUTION CONTROLS","PART 1090—REGULATION OF FUELS, FUEL ADDITIVES, AND REGULATED BLENDSTOCKS","Subpart C—Gasoline Standards"],"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":"16c6390f9492cd09a26e5eee3c13671f778aba5d1ef25c87a69fbcf84a6effa2","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-1090.250","next":"us/40-cfr-1090.260"},"notice":"GroundRules: Original legal text. Not legal advice."}