The withdrawal agreement provides for a transition period during which there will be absolutely no change to existing fishing rights of access or quota shares. The transition period will last until the end of December 2020 but could be extended. During the transition period, there will be negotiations on an overall future relationship agreement and fisheries will be part of those negotiations. If those overall negotiations are not concluded in time then a decision will have to be made in July 2020 either to extend the transition period or apply the UK-wide customs provisions. In the latter scenario, in accordance with Article 6 of the protocol on Ireland-Northern Ireland in the withdrawal agreement, seafood products will be excluded if no agreement on access and shares has been reached in the interim. This means that UK exports of seafood products to the EU would be subject to tariffs in the absence of a new fisheries agreement.
Negotiations on a fisheries agreement will, as is set down in the political declaration, take place in the context of the overall future economic relationship between the EU and the United Kingdom. In other words, fisheries will not be dealt with in isolation.