The NZ Transport Agency (NZTA; Māori: Waka Kotahi) is a New Zealand Crown entity tasked with promoting safe and functional transport by land, including the responsibility for driver and vehicle licensing, investigating rail accidents and administering the New Zealand state highway network. It was created on 1 August 2008 by the Land Transport Management Amendment Act 2008, merging Transit New Zealand with Land Transport New Zealand. Its legal name, as established by the Act, is New Zealand Transport Agency, but it operates as NZ Transport Agency. Its Māori name, Waka Kotahi, means "one vessel" and is intended to convey the concept of "travelling together as one".