The US Treasury Department recently released updated guidelines for the 45V hydrogen production tax credit, aimed at making it easier for producers to benefit from the subsidy. The final guidance maintains key elements such as additionality, temporal matching, and regional deliverability for electrolytic hydrogen, but with certain tweaks. Notably, hydrogen production facilities can now use electricity from existing nuclear plants and fossil fuel-based power plants with carbon capture capabilities to qualify for tax credits under specific conditions. Hourly matching requirements have been postponed to 2030, aligning with EU standards. The changes have been welcomed by industry participants, with the Fuel Cell and Hydrogen Energy Association expressing optimism about the future of clean hydrogen deployments. These modifications are expected to allow for more flexibility in production and potentially attract investment in the hydrogen sector. The revised guidelines come after a period of uncertainty that led to project delays and cancellations due to concerns over eligibility for the tax credits. The relaxation of rules by the Treasury Department is seen as a positive development that could revitalize the hydrogen industry in the US.