Standard/Policy Framework

Leading Region

Core Carbon Intensity Threshold (kgCO₂eq/kgH₂)

EU RFNBO (RED III)

European Union

≤3.38

EU Low-Carbon Hydrogen Act

European Union

≤3.38

U.S. IRA 45V Tax Credit

U.S. Federal

Tier 4: ≤4.0

California LCFS

California, USA

Dynamic Baseline

China DL/T 3015-2023

China

Clean Hydrogen: ≤4.9

Japan METI Standard

Japan

≤3.4

Korea Planned Standard

South Korea

≤5.0 (Draft)