Protections and regulation thumb|Grenen in Denmark is important for bird migrations and is a protected area. thumb|Bjärekusten Nature Reserve with Hovs Hallar in Sweden. Due to its very heavy sea traffic and many large coastal settlements, the Kattegat has been designated as a Sulphur Emission Control Area as part of the Baltic Sea since 2006. As from 1 January 2016 the benchmark for sulphur in fuels was lowered to 0.1%.
Protections and regulation thumb|Grenen in Denmark is important for bird migrations and is a protected area. thumb|Bjärekusten Nature Reserve with Hovs Hallar in Sweden. Due to its very heavy sea traffic and many large coastal settlements the Kattegat has been designated as a Sulphur Emission Control Area as par,t of the Baltic Sea since 2006. As from 1 January 2016 the benchmark for sulphur in fuels was lowered to 0.1%.