Ontario Water Resources Act — evolution timeline

Ontario · 47 consolidated versions · 5 amending bills.

← Back to the Act

47 consolidated versions from Jul 1, 2003 to Nov 27, 2025. Tap a consolidation to see what changed.

Nov 27, 2025 · consolidation · current
Apr 1, 2024 · consolidation
Jun 1, 2021 · consolidation
Apr 19, 2021 · consolidation
Apr 1, 2021 · consolidation
Dec 8, 2020 · consolidation
Dec 31, 2019 · consolidation
Dec 10, 2019 · consolidation
Jul 1, 2019 · consolidation
Jun 6, 2019 · consolidation
May 29, 2019 · consolidation
Mar 26, 2019 · consolidation
~Jul 11, 2018 · bill
Bill 128
Ontario Water Resources Amendment Act, 2019
~Jul 11, 2018 · bill
Bill 198
Cootes Paradise Water Accountability Act, 2020
~Jul 11, 2018 · bill
Bill 63
Cootes Paradise Water Accountability Act, 2021
Apr 3, 2018 · consolidation
Mar 8, 2018 · consolidation
Dec 31, 2017 · consolidation
Dec 12, 2017 · consolidation
Jul 1, 2017 · consolidation
Mar 22, 2017 · consolidation
Jan 1, 2015 · consolidation
~Jul 2, 2014 · bill
Bill 141
Sewage Bypass Reporting Act, 2017
~Jul 2, 2014 · bill
Bill 12
Sewage Bypass Reporting Act, 2018
Jul 1, 2012 · consolidation
Dec 31, 2011 · consolidation
Oct 31, 2011 · consolidation
Jul 1, 2011 · consolidation
Jun 6, 2011 · consolidation
May 12, 2011 · consolidation
Nov 29, 2010 · consolidation
Oct 25, 2010 · consolidation
Jan 1, 2010 · consolidation
Dec 15, 2009 · consolidation
Sep 24, 2009 · consolidation
Jun 5, 2009 · consolidation
May 14, 2009 · consolidation
Jan 1, 2009 · consolidation
Dec 10, 2008 · consolidation
Sep 1, 2007 · consolidation
Aug 20, 2007 · consolidation
Aug 1, 2007 · consolidation
Jun 4, 2007 · consolidation
May 17, 2007 · consolidation
May 1, 2007 · consolidation
Jan 1, 2007 · consolidation
Dec 20, 2006 · consolidation
Oct 19, 2006 · consolidation
Jun 22, 2006 · consolidation
Jun 13, 2005 · consolidation
Oct 1, 2004 · consolidation
Jul 1, 2003 · consolidation