Vehicle registration plates of Oman

Vehicle registration plates of Oman started in 1970. The current version started in 2001.
Vehicle types (new plates).
There are several type of plates in Oman: (Private / Taxi / Commercial / learn driving/ government / political body / Authority Consulate / UN / Tractor / Bicycle mechanism / export / checking / rental)
Main district codes (for old plates ).
The style is 89127 X(X(X)) with Arabic numbers followed with letters. X is district registered to: