The British Nationality (Regularisation of Past Practice) Act 2023 aims to disregard immigration restrictions for historical cases under the British Nationality Act 1981. The Act introduces a provision stating that individuals exercising freedom of movement rights during specific periods, known as the "remedial period," are considered not subject to any immigration restrictions on their stay in the United Kingdom. The remedial period varies depending on the specific right to reside and ranges from January 1983 to October 2004. This Act applies to England, Wales, Scotland, Northern Ireland, the Channel Islands, the Isle of Man, and the British overseas territories.