Ocean power in New Zealand speed. Because the tidal speed doubles, eight times more tidal power can be produced at spring tides than at neap tides. The entrance to Kaipara Harbour, one of the largest harbours in the world, is a channel to the Tasman Sea. It narrows to a width of , and is over deep in parts. On average, Kaipara tides rise and fall . At high tide, nearly 1000 square kilometres are flooded. Spring tidal flows reach 9 km/h (5 knots) in the entrance channel and move 1,990 million cubic metres per tidal movement or 7,960 million cubic meters daily. In 2011,
An Act to amend the Criminal Code (offences relating to conveyances) An Act to amend the Criminal Code (offences relating to conveyances) An Act to amend the Criminal Code (offences relating to conveyances) and to make consequential amendments to other Acts, also known as Bill C-46, is a act of the Parliament of Canada that was introduced in the House of Commons by Minister of Justice Jody Wilson-Raybould in 2017, alongside the "Cannabis Act". The act increases police powers related to impaired driving—including authorizing mandatory alcohol screening, without suspicion that the person is impaired—and it increases the maximum punishments for driving related offences in the Criminal Code. The act creates a