Then another interesting part of this Part is at section 54, and that has some definitions and interpretation for this Part of the bill. It introduces a concept of sort of three tiers of different types of plants. One of them is native plants—that's quite simple—and then another is plants that have arrived in New Zealand without human assistance. And then there's a third, which is non-native plants that have arrived with human assistance, but that's on a waka before 1769, and are listed in regulations as significant. 