IUU is fishing activity which is illegal, unregulated and unreported. Vessels are observed and inspected by NEAFC inspectors and those without the correct licences are added to NEAFC's A list, an observation list. Vessel on the A List have certain restrictions on them. Investigations are made via the flag-state into the vessel and if there are no extenuating circumstances the vessel is transferred to the B List. Vessels on the NEAFC B List face severe restrictions on their activity in the NEAFC Area, and potentially beyond it. In some situations Vessels can be de-listed by NEAFC. Please check our Guide . For full details regaring the operation of the A and B List that will form the basis for any decision please also consult NEAFC Scheme of Control and Enforcement