This part applies to any waters (in this Part referred to as "controlled waters") of any of the following classes—
The Secretary of State—
and in subsection (1) above "fresh-water limit", in relation to any river or watercourse, means the place for the time being shown as the fresh-water limit of that river or watercourse in the latest map deposited for that river or watercourse under this subsection.
It shall be the duty of SEPA to keep any maps deposited with it under subsection (2) above available, at all reasonable times, for inspection by the public free of charge.
"miles" means international nautical miles of 1,852 metres;
"loch or pond" includes a reservoir of any description;
"relevant loch or pond" means (subject to subsection (5) below) any loch or pond which (whether it is natural or artificial or above or below ground) discharges into a relevant river or watercourse or into another loch or pond which is itself a relevant loch or pond;
"relevant river or watercourse" means any river or watercourse (including an underground river or watercourse and an artificial river or watercourse) which is neither a public sewer nor a sewer or drain which drains into a public sewer.
The Secretary of State may by order provide—
The power of the Secretary of State to make an order under subsection (5) above shall be exercisable by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament; and such an order may—