In the United Kingdom, devolved matters are the areas of public policy where the Parliament of the United Kingdom has devolved its legislative power to the national assemblies of Scotland, Wales and Northern Ireland, while reserved matters and excepted matters are the areas where the Parliament retains exclusive power to legislate. The devolved administrations in Scotland, Wales and Northern Ireland have been granted power by the Parliament under their respective legislators in all areas except those which are reserved (or excepted in the case of Northern Ireland). Because the Parliament acts with sovereign supremacy, it is still able to pass legislation for all parts of the United Kingdom, including in relation to devolved matters. The devolution of powers are set out in three main acts legislated by the UK Parliament for each of the devolved governments in Scotland, Wales and Northern Ireland. The acts also include subsequent amendments, which devolved further powers to the administrations: Northern Ireland Act 1998 amended by the Northern Ireland Act 2006. Scotland Act 1998 amended by the Scotland Act 2012 and the Scotland Act 2016. Government of Wales Act 1998 amended by the Government of Wales Act 2006, the Wales Act 2014 and the Wales Act 2017 In Northern Ireland, the powers of the Northern Ireland Assembly do not cover reserved matters or excepted matters. In theory, reserved matters could be devolved at a later date, but excepted matters were not supposed to be considered for further devolution. In practice, the difference is minor as Parliament is responsible for all the powers on both lists and must give its consent to devolve them. In Scotland, a list of reserved matters is explicitly listed in the Scotland Act 1998 (and amended by the Scotland Acts of 2012 and 2016). Any matter not explicitly listed in the Act is implicitly devolved to the Scottish Parliament. In Wales, a list of reserved matters is explicitly listed under the provisions of the Wales Act 2017. Any matter not explicitly listed in the Act is implicitly devolved to the Senedd.