Printer-friendly version S.I. No. 529 of 2020 - European Union (Good Agricultural Practice for Protection of Waters) (Amendment) (No. 3) Regulations 2020 External file(s) S.I. No. 529 of 2020 - European Union (Good Agricultural Practice for Protection of Waters) (Amendment) (No. 3) Regulations 2020 Category Water Topic Water Quality Sub topic Nitrates