To ask the Secretary of State for the Environment whether he will make it his policy progressively to introduce low-energy lighting in all the buildings operated by his Department.

My Department's policy relating to the installation of low-energy lighting is to replace all standard luminaires, both tungsten and fluorescent, with low-energy consuming equivalents, wherever this is practicable and cost-effective. A programme of lighting replacement is in progress and low-energy lighting has already been installed in six major buildings representing about 60 per cent. of my Department's office estate.