S.I. No. 33/1999 – Environmental Protection Agency Act, 1992 (Ambient Air Quality Assessment and Management) Regulations, 1999
S.I. No. 208/1999 – Environmental Protection Agency Act, 1992 (Urban Waste Water Treatment) (Amendment) Regulations, 1999
S.I. No. 15/2002 – Environmental Protection Agency (Selection Procedures) (Amendment) Regulations, 2002
S.I. No. 91/2003 – Environmental Protection Agency (Selection Procedures) (Amendment) Regulations, 2003