On April 30, 2018, 18 pro-ethanol Senators sent a bi-partisan letter to U.S. Environmental Protection Agency (EPA) Administrator Scott Pruitt requesting a “transparent timeline … on the regulatory pathway forward to address the Reid Vapor Pressure (RVP) issue,” “an expected timeline of the rulemaking process to clarify how the agency will make this change to allow higher ethanol blends access to the marketplace” and “immediate clarity to allow higher ethanol blends to be sold in the interim while the outdated regulation is being changed” as related to President Trump’s commitment to allow for 15 percent ethanol blends (E15) to be sold year-round and Pruitt’s statements in an EPA budget hearing in front of the House Energy and Commerce Committee’s Subcommittee on Environment regarding EPA’s issuance of a waiver that would allow year-round sales of gasoline containing 15 percent ethanol.