Law of the United Kingdom

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Part of a series on
British law
Acts of Parliament of the United Kingdom Year      1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Parliament (session) 42 (1·2·3·4·5) 43 (1·2) 44 (1·2·3·4) 45 (1·2·3·4) 46 47 (1·2·3·4·5) 48 (1·2·3·4) 49 (1·2·3·4) 50 (1·2·3·4·5) 51 (1·2·3·4·5) 52 (1·2·3·4) 53 (1·2·3·4) 54 (1·2·3·4·5) 55 (1·2·3·4) 56 (1·2) 57 (1·2) 58 (1·2·3)
Acts and measures by devolved parliaments and assemblies Scottish Parliament 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Senedd Cymru (Welsh Parliament) 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Northern Ireland Assembly 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Northern Ireland Assembly (1973) 1973–1974 Parliament of Northern Ireland 1921–1972 Orders in Council for Northern Ireland
Acts of parliaments of states preceding the United Kingdom Parliament of Great Britain 1707 1708 1709 1710–1714 1715–1719 1720–1724 1725–1729 1730–1734 1735–1739 1740–1744 1745–1749 1750–1754 1755–1759 1760–1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 Parliament of England Royal statutes, etc. issued before the development of Parliament 1225–1267 1275–1307 1308–1325 Temp. incert. 1327–1411 1413–1460 1461 1463 1464 1467 1468 1472 1474 1477 1482 1483 1485–1503 1509–1535 1536 1539–1540 1541 1542 1543 1545 1546 1547 1548 1549 1551 1553 1554 1555 1557 1558–1575 1580 1584 1586 1588 1592 1597 1601 1603 1605 1606 1609 1620 1623 1625 1627 1640 1642–1660 (Interregnum) 1660 1661 1662 1663 1664 1665 1666 1667 1670 1672 1675 1677 1678 1679 1680 1685 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698      1700 1701 1702 1703 1704 1705 1706 Parliament of Scotland Up to 1707 Parliament of Ireland Before 1701 1701–1750 1751–1800
Delegated legislation United Kingdom statutory instruments 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Statutory rules and orders United Kingdom 1894–1947 Northern Ireland 1922–1973 Regulatory reform orders Ministerial orders
Devolved delegated legislation Scottish statutory instruments 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 Welsh statutory instruments 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 Statutory rules of Northern Ireland 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Church of England Measures Instruments
Retained EU law Decision Directive Regulation
Acts of Parliament relating to the European Union (formerly the European Communities) 1972–present
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The United Kingdom has three distinctly different^[1] legal systems, each of which derives from a particular geographical area for a variety of historical reasons: English law, Scots law, Northern Ireland law,^[2] and, since 2007, calls for a fourth type, that of purely Welsh law as a result of Welsh devolution, with further calls for a Welsh justice system.^[3][4][5]

In fulfilment of its former EU treaty obligations, European Union directives were actively transposed into the UK legal systems under the UK parliament's law-making power. Upon Brexit, EU law was transplanted into domestic law as "retained EU law", though the UK remained temporarily in alignment with EU regulations during the transition period from 31 January to 31 December 2020.