This Order applies in Great Britain. Parts 1 to 9 establish an Energy Company Obligation scheme for the period to 31st March 2026 for the promotion of measures for reducing the cost to individuals of heating their homes (“the ECO4A scheme”). The ECO4A scheme is administered and enforced by the Gas and Electricity Markets Authority (the “Administrator”). Part 10 amends the Electricity and Gas (Energy Company Obligation) Order 2022 (“the 2022 Order”). That Order established another Energy Company Obligation scheme (“the ECO4 scheme”) also for the promotion of measures for reducing the cost to individuals of heating their homes.