WSI 2021/77. The Water Resources (Control of Agricultural Pollution) (Wales) Regulations 2021. Comes into force 1st April. These Regulations protect waters against pollution by nitrates from agricultural sources. These Regulations revoke and replace—
(a) the Nitrate Pollution Prevention (Wales) Regulations 2013 (WSI 2013/2506) which control the application of nitrogen fertiliser in nitrate sensitive areas, and
(b) the Water Resources (Control of Pollution)(Silage and Slurry) (Wales) Regulations 2010 (WSI 2010/136) which regulate the custody and control of silage and slurry and provided the design and construction standards applicable for its storage.