The National Emission Ceilings Regulations 2018 (on legislation.gov.uk) sets a target for a reduction of ammonia emissions of 16% by 2030 from the 2005 emissions levels.
Mae Rheoliadau Terfynau Uchaf Allyriadau Cenedlaethol 2018 (ar legislation.gov.uk) yn gosod targed i leihau allyriadau amonia 16% erbyn 2030 o'i gymharu â lefelau allyriadau 2005.