The Bylaw reflects Maritime Rule Part 91, as well as local rules. Following is a summary of important points in the Bylaw for your reference.
Speed not to exceed 5-knots:
At any time within 50m of other vessels or person in water
At any time 200m either side of Manawatu Marine Boating Club launching ramp at Foxton Beach
At any time in the Foxton Loop between Speir's Corner and the corner adjacent the Water Tower
During the period one week prior to and one week after duck shooting season opening day (first Saturday in May) except when transiting to/from the open sea
From Jackeytown Road to point 350m upstream of SH3 Bridge at Ashhurst during period 1 October - 31 March each year (jet skis not to exceed 5-knots at any time in this area)
On the Manawatu River between 2km upstream of the Whirokino Bridge down to the Whirokino boat launching ramp
On the Manawatu River upstream of the Whirokino Bridge, from the Te Pehu Trig Station to another point 1.6km upstream where Cooks Drain enters;
On the Manawatu River below the Foxton - Shannon Bridge, between points 1 and 4 km downstream of that bridge; and
On the Manawatu River from a point 200m upstream of the Manawatu Marine Boating Club launching ramp to the downstream end of the Foxton Loop.
The Harbourmaster and appointed Enforcement Officers have powers under the Bylaw to keep the Manawatu River and its tributaries safe for navigation and recreation.
If you're using the Whanganui River, be sure to check out this informative River Safety Video put together by the Whanganui Navigation and River Safety Group. It features great tips and information for safer river use.