The Biden administration has made significant changes to the tax credit rules for hydrogen production in the US, aiming to boost the industry's growth and domestic manufacturing. These revisions, part of President Biden's climate law, now allow for a more flexible approach to qualifying for subsidies, benefiting companies like Constellation Energy Corp. and Plug Power Inc. The tax credit, providing up to $3 per kilogram for production, aims to stimulate a domestic industry for clean hydrogen essential in reducing carbon dioxide emissions in various sectors. The latest rules expand eligibility to include hydrogen produced from natural gas with carbon capture, methane, and renewable natural gas, among other sources. The revisions received positive feedback from industry stakeholders, with Constellation Energy Corp. and Plug Power Inc. expressing satisfaction with the changes. However, criticism arose from groups like the US Chamber of Commerce, citing concerns about the rules falling short and leaving projects uncertain. Mainstream environmental organizations like the Natural Resources Defense Council welcomed the changes, highlighting the progress towards a cleaner hydrogen industry. While the revisions aim to balance economic growth with environmental protection, voices from groups like Earthjustice called for stricter regulations to prevent dirty hydrogen production from benefiting from the program. The final rules provide opportunities for project developers to scale up clean hydrogen projects while addressing concerns about pollution and taxpayer protection.