The US Treasury has finalized rules for implementing the Clean Hydrogen Production Tax Credit, known as Section 45V, to stimulate the growth of the clean hydrogen industry in the country. The credit offers up to $3 per kilogram of hydrogen for producers who significantly reduce greenhouse gas emissions in their processes. Alongside $7 billion in federal funding for regional hydrogen hubs and $1 billion for demand-side initiatives, the tax credit is pivotal in driving clean energy adoption. The rules, which drew extensive public interest with 30,000 comments, maintain the 'three pillars' requirements of low-emitting power generation matching for hydrogen production while making adjustments to facilitate compliance. Noteworthy changes include allowing existing nuclear plants to power hydrogen production and extending deadlines for matching clean power generation. Furthermore, pathways for producing creditable hydrogen from biogas, RNG, and fugitive methane have been established, promoting diverse clean energy sources. While the rules clarify GHG emission requirements using the 45VH2-GREET model and address emission rates and accounting methods for different feedstocks, uncertainties loom over potential impacts from the incoming Trump administration. The administration could seek to rescind or modify the rules, posing procedural challenges and uncertainties in the regulatory landscape. Overall, the hydrogen tax credit provides a significant opportunity for producers to benefit from tax incentives while contributing to the reduction of emissions. Producers can claim the credit over a 10-year period, with options for direct payments in the initial five years, enhancing financial flexibility and incentivizing clean hydrogen production.