Section 2(2): Part 3 (except sections 44–49) brought into force, on 1 July 2011, by clause 2(1) of the Environmental Protection Authority Act Commencement Order 2011 (SR 2011/193).
Section 2(2): Part 4 (except section 53(2)) brought into force, on 1 July 2011, by clause 2(2) of the Environmental Protection Authority Act Commencement Order 2011 (SR 2011/193).
Section 2(2): sections 44 to 49 and 53(2) brought into force, on 5 December 2011, by the Environmental Protection Authority Act Commencement Order (No 2) 2011 (SR 2011/321).