They were established under the Marine and Coastal Access Act (2009) and are areas designated with the aim to protect nationally important, rare or threatened habitats and species.
[1][2] Approximately 20% of UK waters now have some protection although some conservation, fisherman and wildlife groups are concerned that there are no management plans for each zone.
[3] Following Brexit, legislation was introduced into Parliament in January 2020 which would give new powers to the Marine Management Organisation in English waters.
"[12][13] A plan to create HPMAs in 10% of Scotland's seas was rejected by the Scottish government following pressure from the fishing industry and some island communities.
[16] In the summer of 2014 the Cabinet Secretary for Rural Affairs, Food and the Environment announced thirty new Marine Protected Areas.