The Erriff is subject to national angling regulations on salmon angling. The river is above its conservation limit, which means that a quota is in place, and anglers may take a salmon if they wish. Catch-and-release is encouraged but not mandatory in any way.

Anglers must have a valid State Salmon Licence, and a permit from the fishery manager. Fly fishing only, except at the discretion of the fishery manager.

Due to the declining number of sea trout in the Connemara area a statutory ban on the taking of sea trout was introduced in 1990. Accordingly, all sea trout must be returned alive.

On landing a salmon, which is to be retained, the fish must be tagged immediately with a blue carcass tag, and the details recorded in the anglers logbook.

At the end of the season, or when the licence expires if before that date, the logbook and any unused tags must be returned in the envelope provided. Failure to make a return is an offence. Logbook returns allow us to get a more accurate figure for the numbers of salmon caught, and inform decisions on quotas for following seasons.