Modifications to Fuel Regulations To Provide Flexibility for E15; Modifications to RFS RIN Market Regulations

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 80 [EPA-HQ-OAR-2018-0775; FRL-9994-87-OAR] RIN 2060-AU34 AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: The Environmental Protection Agency (EPA) is adopting a new statutory interpretation and making corresponding regulatory changes to allow gasoline blended with up to 15 percent ethanol to take advantage of the 1-pound per square inch (psi) Reid Vapor Pressure (RVP) waiver afforded under the Clean Air Act (CAA). In doing so, EPA is finalizing an interpretive rulemaking which defines gasoline blended with up to 15 percent ethanol as “substantially similar” to the fuel used to certify Tier 3 motor vehicles. Finally, EPA is making regulatory changes to modify certain elements of the Renewable Fuel Standard (RFS) compliance system, in order to improve functioning of the renewable identification number (RIN) market and prevent market manipulation. DATES: Amendatory instructions 4-10 are effective July 10, 2019. Amendatory instructions 1-3 and 11-12 are effective June 5, 2019. Operational dates: For operational purposes under the Clean Air Act, the amendments to 40 CFR part 80, subpart M and corresponding portions of the preamble are effective as of July 10, 2019, and the amendments to 40 CFR part 80, subparts B and N ; corresponding portions of the preamble; and the interpretation of “substantially similar” in the appendix to this Federal Register document are effective as of May 30, …