Vehicle registration plates in Trinidad and Tobago are categorised using prefixes based on the type of vehicle and feature up to four succeeding digits. Registration plates in Trinidad and Tobago are supposed to be either white figures on a black background or black figures on a white background. All motor vehicles that are operating in the roads of Trinidad and Tobago are required by law to have a registration plate affixed to the front and rear of the vehicle at all times except during very specific situations. This current system has been present for over 40 years.