The Keeping and Introduction of Fish (England and River Esk Catchment Area) Regulations 2015
These Regulations control the keeping and introduction of fish in inland waters. They provide that it is an offence to introduce any fish into inland waters, to keep certain types of fish (the fish that belong to a taxonomic order specified in Part 1 of the Schedule but are not of a species specified in Part 2 of the Schedule) in inland waters, or to keep of any kind of fish in protected areas where those fish would otherwise be absent, other than in accordance with a permit granted under these Regulations by the Environment Agency (regulations 4 and 5). The Environment Agency may attach conditions to permits to introduce fish or to keep fish and a list of purposes for which, or matters in relation to which, conditions may in particular be imposed is contained in regulation 6(4). The Regulations apply in relation to England, and in relation to so much of the catchment area of the River Esk as is in Scotland.