Title 42 › CHAPTER 149 — NATIONAL ENERGY POLICY AND PROGRAMS › SUBCHAPTER VIII — HYDROGEN › § 16166
The Secretary must write an initial rule for how much greenhouse gas is allowed when making clean hydrogen. That rule had to be made within 180 days after November 15, 2021, and the Secretary must work with the EPA Administrator and get input from industry and others. The rule must cover the sources listed in section 16154(e)(2), call “clean hydrogen” any hydrogen made with carbon emissions of 2 kilograms CO2‑equivalent or less per kilogram of hydrogen at the production site, and consider what is technologically and economically possible. Within 5 years after making the rule, the Secretary must check whether the 2 kg CO2e/kg limit should be lowered and, if appropriate, change it, again consulting the EPA and stakeholders. The rule applies to hydrogen from renewable sources, fossil fuels with carbon capture, nuclear, and other fuels and production methods.
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The Public Health and Welfare, Source: USLM XML via OLRC
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42 U.S.C. § 16166
Title 42, The Public Health and Welfare
Last Updated
Sep 22, 2026
Release point: 119-110