This document establishes the legal framework and regulatory requirements for non-fossil fuel electricity generation within England and Wales as of 1990. The text serves as a formal statutory instrument, drafted by government legal departments to implement specific energy policies under the Electricity Act 1989. It outlines the obligations of electricity suppliers and the mechanisms for supporting renewable or non-fossil fuel energy sources during the privatization era of the British electricity industry.

Legal professionals and energy historians utilize this document as a primary source for understanding the legislative origins of the Non-Fossil Fuel Obligation (NFFO) in the United Kingdom. It is recognized as a technical regulatory text intended for administrative and legal reference rather than general readership.