The goal of the UK Low Carbon Transition Plan is to reduce GHG emissions by 36% below 1990 levels by 2020. Since October 1st, 2008 public buildings in the UK over 1,000m2 must display a Display Energy Certificate (DEC). DECs document the actual energy usage of a building and look similar to the energy labels provided on new cars and electrical appliances. HM Government has proposed extending the requirement for Display Energy Certificates to all non-residential buildings.
In addition it has proposed a detailed analysis of the costs and benefits of requiring all non-domestic buildings to have an Energy Performance Certificate (EPC) in place by 2018 and requiring all such buildings to have an EPC rating (A=highest through G=lowest) of F or higher by 2020.