F2SEPA may by byelaws make such provision asit considers appropriate for prohibiting or regulating the keeping or use, on any controlled waters F3. . . F4 , of vessels of a kind specified in the byelaws which are provided with sanitary appliances; and a person who contravenes any byelaw made by virtue of this section shall be guilty of an offence.

The Secretary of State may by order provide that any byelaws specified in the order which were made by virtue of section 25(1)(c) of the Rivers (Prevention of Pollution) (Scotland) Act 1951 (byelaws) shall have effect, with such modifications (if any) as are so specified, as if made by virtue of the preceding subsection.

In this section “sanitary appliance” means a water closet or other prescribed appliance (except a sink, bath and a shower-bath) which is designed to permit polluting matter to pass into the water on which the vessel in question is for the time being situated.

A person guilty of an offence by virtue of any of the preceding provisions of this section shall be liable on summary conviction to a fine of an amount not exceeding level 4 on the standard scale or such smaller sum as may be specified in the byelaws.