...regulates the manner in which official information may be obtained or made available." Data inconsistencies Inconsistencies exist in the register data making automated matching of vehicles difficult. Although many input fields are available most are not mandatory and the quality of the data entered differs depending on the experience of the operator and the information available to them. Open input fields are used in some instances where lists should be provided causing spelling differences and errors. Model and submodel names are sometimes reversed, vehicle features are often omitted. Over a third of all chassis and engine types are missing, incorrect or not machine readable. Prohibitive laws preventing deep analysis The NZTA offers data analysis of the register but not with VIN, engine number or chassis codes as these can uniquely identify a vehicle. Technically, analysis would exclude all uniquely identifying data; however, this is a legal grey area that has hindered the development of vehicle matching systems using Motor Vehicle Register information. References External links Collection of New Zealand numberplates from many eras Requesting register information from the NZTA Stolen vehicle check at the New Zealand Police website Road transport in New Zealand Transport law in New Zealand New Zealand New Zealand transport-related lists Registration plates