This legislation aims to extend federal tax incentives for the production and use of biodiesel and renewable diesel fuels. It amends the Internal Revenue Code to reinstate and prolong both the income tax credit for biodiesel mixtures and the excise tax credits for these fuels. These incentives, which were previously set to expire at the end of 2024, would now apply to fuel sold or used from the bill's enactment date through December 31, 2029 . The extension is intended to support the continued development and adoption of these alternative energy sources. A key component of the bill includes **anti-double benefit provisions** to prevent taxpayers from claiming multiple credits for the same fuel. Specifically, if a clean fuel production credit is claimed for a fuel, the biodiesel mixture income tax credit for that fuel will be zero. Conversely, no clean fuel production credit will be allowed if an excise tax credit for biodiesel mixtures has already been claimed. These amendments will apply to fuel sold or used on or after the date the bill is enacted into law.