| Statute/Institution | Recommended width (m) of riparian reserve |
| Water Act (2002) | Minimum 6 m and maximum 30 m from edge of the river |
| EMCA (1999) | Minimum 6 m and maximum 30 m from edge of the river |
| Agriculture Act | 6 - 10 m; sometimes ad hoc |
| Physical Planning Act | Minimum 2 m in height and maximum 30 m horizontal from edge of the river |
| Survey Act | Minimum 30 m for tidal rivers only. No mention of other smaller rivers. Measurement from high water mark |
| Local Government Act | Ad hoc to a planner’s discretion: 3 m, 6 m; in some instances it is taken as equal to the width of the river or twice the width of the river |
| City Council by-laws | Maximum of 30 m from high water mark |