The US Treasury Department has released its final rules for low-carbon hydrogen producers to access tax credits, a process that took over two years and included public feedback. The guidelines provide flexibility for green hydrogen projects using nuclear power and introduce opportunities for blue hydrogen projects to qualify for credits based on their emissions profile. The rules maintain stringent requirements for green hydrogen, emphasizing the use of renewable power generated concurrently with hydrogen production. While the policy tweaks offer some flexibility, uncertainties remain regarding their impact on blue hydrogen projects using reformed natural gas and carbon capture and storage (CCS), especially with the upcoming change in administration. The rules aim to ensure investment certainty and define criteria for demonstrating the incremental use of new green electricity. Treasury's decision to allow projects additional time to meet hourly matching requirements and clarify conditions for emissions data reporting sets the stage for the low-carbon hydrogen industry's future development.