The US Treasury Department has introduced the final rules for the 45V Clean Hydrogen Production Tax Credit, a significant incentive to boost investment in the US hydrogen market and steer the industry towards cleaner production methods in alignment with global emission standards. The inclusion of nuclear power as an eligible energy source for hydrogen production has been highlighted as a positive move, particularly in preventing the premature retirement of nuclear reactors. This decision has received endorsement from industry experts and has positively impacted the shares of nuclear power companies. However, the decision to allow fossil fuel-based hydrogen production to qualify for tax credits has sparked debate among environmental groups and renewable energy advocates, who argue for benefits to be limited to hydrogen produced from new clean energy sources. The finalized rules introduce a tiered system based on life cycle greenhouse gas emissions to ensure fair credit distribution, potentially granting full credits to companies using carbon capture and storage or producing hydrogen from natural gas alternatives like wastewater or animal manure. The guidelines also aim to enhance accuracy in tracking upstream methane emissions, critical for determining credit values and categorizing different credit tiers. Despite the positive outlook towards the tax credit, concerns have been raised regarding the accurate monitoring of emissions from hydrogen production, especially if regulations on methane and emissions reporting are eased. Furthermore, the deadline for certification for green hydrogen producers has been extended, allowing more time for compliance with the new regulations. This delay emphasizes the importance of accurate emissions tracking for fair categorization and eligibility for tax credits, promoting transparency and efficiency in the evolving hydrogen industry.