To ask the Secretary of State for the Environment when he expects to issue his formal plan for reducing sulphur dioxide and NOx emissions from existing large combustion plants.

The United Kingdom's programme and national plan for reducing emissions of sulphur dioxide and oxides of nitrogen from existing large combustion plants was published on 20 December. Notice of the making of the plan was given in the London, Edinburgh and Belfast Gazette. Copies have been laid in the Libraries of both Houses and are also available from my Department.