Japan GX Emissions Trading System (GX-ETS) — mandatory phase
Japan's GX-ETS moved from a voluntary phase (FY2023–FY2025) to a mandatory phase on 1 April 2026 under the amended GX Promotion Act. Companies with average annual direct CO2 emissions of 100,000 tonnes or more must surrender allowances corresponding to their actual emissions.
Legal reference Act on the Promotion of a Smooth Transition to a Decarbonized Growth-Oriented Economic Structure (GX Promotion Act, Act No. 32 of 2023), as amended by Act No. 52 of 2025 (promulgated 4 June 2025)
Checked against International Carbon Action Partnership (ICAP) · 4 Oct 2026