The article discusses Japan's critical step towards achieving net zero carbon emissions by 2050 through the acceptance of the 2009 Amendment to the London Protocol. This Amendment allows Japan to export CO2 for sequestration in sub-seabed geological formations in Asia Pacific, supporting its efforts to combat climate change. By joining other countries in lowering greenhouse gas emissions, Japan aims to reduce its GHG emissions by 46% by 2030 and achieve carbon neutrality by 2050 through various measures like energy conservation, renewable energy sources, and the use of low-emission fuels like hydrogen. The Ministry of Economy, Trade and Industry has issued a Long-Term Roadmap for CCS, focusing on developing a robust CCS business environment by 2030 to address the increase in net carbon emissions and domestic storage limitations. Initial CCS projects in Japan, Malaysia, and Australia have been identified for study and government support. The recent acceptance of the 2009 Amendment is crucial for Japan to overcome the CO2 export prohibition under the London Protocol, facilitating international cooperation in CCS projects. The article also highlights the Declaration on Provisional Application of the 2009 Amendment, which aims to expedite the ratification process by allowing Contracting Parties to apply the Amendment while waiting for the required number of ratifications.