<p>As set out in the Energy Company Obligation 4 (ECO4) final impact assessment published 1 April 2022, there are an estimated 3.7 million properties eligible under current ECO4 eligibility criteria.</p><p> </p><p>Eligible homes in Bands D-E are subject to the pre-assessment survey to determine whether they can meet the minimum improvement requirement.</p><p> </p><p>The decision to offer any assistance lies solely with ECO-obligated energy suppliers and the installers to whom they sub-contract. The Government does not become involved with any of the private contractual decisions of these parties. Therefore, Government does not determine how many of the eligible homes reach the minimum improvement requirement.</p>