 A limited number of commemorative vanity plates, or plates with distinctive prefixes are made available by the Malaysian Road Transport Department at a higher cost.These special plates may be used to denote the manufacturer of the car, such as the codice_39 prefix for Proton cars or special events, such as the codice_40 prefix for the 1998 Commonwealth Games.It was noted that codice_41 number plates were often abused on luxury vehicles to evade motor vehicle import, excise and sales duty in mainland because codice_41 series could be registered in Langkawi and Labuan, both islands having duty-free status (motor vehicles registered in both islands are exempted from mainland motor vehicle duties).