On January 3, 2025, the US Treasury Department and IRS released final regulations regarding the clean hydrogen production credit (PTC) and the treatment of clean hydrogen production facilities as energy property under the Internal Revenue Code. The regulations aim to incentivize clean hydrogen production by offering tax credits based on the amount of qualified clean hydrogen produced and its associated greenhouse gas emission rates. Modifications were made to provide more flexibility, particularly in areas like incrementality rules and base credit rates. The regulations also allow facilities to make an irrevocable election under IRC §48 to claim investment tax credits. Noteworthy aspects include the definition of a qualified facility, which now includes all equipment components that function together to produce clean hydrogen. The regulations also address scenarios involving multiple electrolyzers within a plant and exclude certain equipment, like feedstock production components, from the definition of a facility. Overall, these regulations aim to promote clean energy production, reduce greenhouse gas emissions, and streamline the process for claiming tax incentives in the clean hydrogen sector.