US lawmakers have introduced biofuels legislation aimed at increasing the availability of higher-ethanol gasoline. The proposal would expand sales of E15, a fuel blend containing 15% ethanol, according to coverage from Financial Post and Bloomberg.

A second component of the bill would adjust federal requirements tied to ethanol blending. It would provide exemptions from annual blending mandates for certain small oil refineries. The exemptions are described as being based on past approvals or exemptions those refineries have received.

Taken together, the legislation seeks both to broaden the market for E15 and to modify how blending obligations apply to smaller refining operators. The reporting from both outlets is consistent on the bill’s core elements: expanding higher-ethanol gasoline sales and creating or extending exemptions from annual blending mandates for selected small refineries with prior exemptions. The sources do not describe additional provisions or changes beyond these points in the provided excerpts.