It is the policy of the Ministry of Defence (MOD) to comply fully with the Building Regulations. This includes the requirement to reduce energy use and carbon dioxide emissions for buildings also covered by part L2 Conservation of Fuel and power for England and Wales which came into force in April 2006. Accordingly, the MOD is adopting a range of policies to improve the whole-life efficiency, energy use, and sustainability of its built estate.
Measures include improved air tightness, higher thermal mass, care in sizing, positioning and detailing windows, orientation of buildings and the use of sustainable building materials and construction techniques. These measures are reflected in new and refurbished buildings which are better designed and more energy efficient; and in efforts to monitor and improve the way that defence personnel use energy in buildings that they occupy.