The Irish Sea limit for food and agricultural products will not be destroyed until 2027, a UK government minister is expected to confirm on Wednesday.
The sea border refers to Brexit check and subsequent posts on products going from Great Britain to Northern Ireland.
In May this year, the UK and the European Union agreed to an outline deal, which will not have any physical examination on GB food products at NI Ports.
The implementation timetable was not clear, but the European Union Relations Minister Nick Thomas-Symonds will later give an update in a speech.
It is expected that further negotiations with the European Union will take place in the autumn in 2026 with the UK law and the implementation in 2027.
The outline deal is based on the UK that it will align with the rules of the European Union on agriculture, which means that Northern Ireland and Great Britain will return to follow the same set of rules.
This would mean that the food to be sent from Great Britain to Northern Ireland will no longer need paperwork and check which has been in place since 2021.
The deal will also cover trade in seeds and garden plants such as horticulture products.
The current trading system of Northern Ireland came as the result of the Brexit deal between the European Union and the UK in 2019, which was modified in 2023, and is now known as the Windsor Framework.
They agreed that the most practical way to keep the border open between Northern Ireland and the Republic of Ireland was to follow many European Union laws on the regulation of goods for North Ireland.
However this means that the goods coming from the rest of the UK in northern Ireland to ensure that they meet the rules of the European Union.
This system is known as the Irish Sea border.
It has had a special impact on the food industry as the Northern Ireland Supermarkets are still largely supplied from distribution centers in England and Scotland.
New border control posts have been created at NI ports to facilitate investigation on food products coming from GB.
The new deal should reduce the impact of the marine border for food and plants to a great extent as there will be no regulatory differences between Northern Ireland and Great Britain.
However, this customs will not overcome the requirement of paperwork.