On January 3, 2024, the final regulations for the clean hydrogen production tax credit under section 45V of the Internal Revenue Code were released by the IRS and the Department of the Treasury. This tax credit, a key component of the Biden Administration's clean energy initiative, is aimed at promoting the production of clean hydrogen. The regulations address concerns raised by the hydrogen industry regarding restrictions on energy attribute certificates (EACs), commonly referred to as the 'three pillars'. The regulations have been liberalized in certain aspects to provide more flexibility for hydrogen producers. Key changes include exceptions for clean power sources, a CCS retrofit rule, and a transition rule for hourly matching requirements. The regulations also clarify hourly accounting for greenhouse gas emissions and maintain geographic matching while allowing flexibility for electricity transfers between regions. Overall, these regulations are designed to support the clean hydrogen industry and encourage environmental compliance in hydrogen production processes.