The MNZ have developed Rule Part 91 – The Navigation Safety Rule. Rule Part 91 became law on March 21, 2003. The new rule makes it compulsory for a certified PFD to be worn at times of “heightened risk”. Kayakers in New Zealand typically wear PFDs as a matter of course, but all kayaking PFDs are currently uncertified (and likely to stay that way for the immediate future). Technically almost everyone paddling since March is breaking the law. The rule apparently also restricts playing on waves and navigation in river channels. Jonathan Hunt and Tony-Ward Holmes provide an overview of Rule Part 91 and its implications for kayakers.