On February 2, 2022, the European Commission adopted a Complementary Climate Delegated Act (the “CCDA”) listing specific gas and nuclear activities as “environmentally sustainable” for purposes of the EU Taxonomy Regulation, subject to strict criteria. Only certain activities that comply with strict emissions limits and other criteria detailed below may be so designated. Even so, the Commission’s decision to list nuclear and gas activities as “environmentally sustainable” is controversial and may still be blocked by EU Member States and the European Parliament through an upcoming scrutiny period, and may also be legally challenged before the EU Courts. Nevertheless there is a significant chance that the Commission’s criteria to consider the listed gas and nuclear activities as “environmentally sustainable” will enter into force by the beginning of 2023. This would allow such listed gas and nuclear activities to have access to green investors and ear-marked public funds under the EU’s Next Generation EU investment program.