# Salmon and Freshwater Fisheries Act 1975, Section 13: Sluices.

Extent: E+W

(1) Subject to subsection (3) below, unless permission in writing is granted by the appropriate agency, any sluices for drawing off the water which would otherwise flow over any dam in waters frequented by salmon or migratory trout shall be kept shut on Sundays and at all times when the water is not required for milling purposes, in such manner as to cause the water to flow through any fish pass in or connected with the dam or, if there is no such fish pass, over the dam.
(2) If any person fails to comply with this section, he shall be guilty of an offence.
(3) This section shall not prevent any person opening a sluice for the purpose of letting off water in cases of flood or for milling purposes or when necessary for the purpose of navigation or, subject to previous notice in writing being given by the appropriate authority, for cleaning or repairing the dam or mill or its appurtenances.

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Source: https://www.legislation.gov.uk/ukpga/1975/51/section/13 (the official version)
Page: https://openlegislation.uk/salmon-and-freshwater-fisheries-act-1975/section-13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.