Decision for Energy Companies Obligation (ECO): Consultation on requirements for demonstrating characteristics of hard-to-treat cavities

Decision

As a result of this consultation we have published the Energy Companies Obligation (ECO): Supplementary Guidance on Hard-to-Treat Cavity Wall Insulation. This document provides supplementary guidance in relation to specific categories of hard-to-treat cavity wall insulation under the Energy Companies Obligation (ECO) and should be read in conjunction with the ECO Guidance for Suppliers (Version 1.1).