The River Tweed Commission is charged under statute with the management of Fisheries in the Tweed District. In addition to the law a number of codes and policies have been agreed by the Commission.

The Codes do not carry the weight of law but they have been agreed by consensus on the River and are widely adopted as good practice.

The policies adopted by the Commission enable the practical implementation of the law recognising good practice and sound science.

The RTC relies on the biological work of the Tweed Foundation to provide the basis of objective decison making on the River.