Vehicle registration plates of Nepal

In Nepal, all road vehicles with or without a motor (except bicycles) are tagged with a registration number. Licence plates are commonly known as number plates. The licence plate number is issued by the state-level Transport Management Office, a government agency under the Department of Transport Management. The licence plates must be placed in the front as well as back of the vehicle. The international vehicle registration code for Nepal is NEP.
The President of Nepal travels in an official vehicle that has no number on its plates. Instead it has the Coat of Arms of Nepal embossed on it.
Current system.
The current system was introduced on 25 October 2018. The new system is based on 3 lines format. Line 1: L-N, Line 2: NNNL Line 3: NNNN. This format is based on province name and district codes. 
These plates come with a RFID microchip that enables the government to maintain uniformity in issuance of number plates and prevent duplication. Similarly, the new number plates also help authorities to maintain digital records of vehicles plying on the road tolls, collect revenue on time and control auto theft.
History.
The previous system of the licence plate of Nepal consisted of four parts composed of letters (L) and numbers (N) in the L NN L NNNN format:
Zonal Code.
All former fourteen zones of Nepal had their own abbreviated code for reference purpose. These codes were normally single letter in Nepali and two letters (sometimes three letters also, but the third letter 'a' can be omitted) in English. The following is the list of zonal codes in both languages:
Vehicle Classification.
For the purpose of vehicle registration "Vehicle & Transport Management Act, 2049 (1992)" and "Vehicle & Transport Management Rule, 2054 (1997)" of Nepal, classifies vehicles into the following 5 main categories on the basis of size and capacity:
The above-mentioned each categories are further divided into 5 sub categories on the basis of ownership and service-type which are as follows:
Plate Types.
In Nepal, various vehicle types are classified as mentioned above. Those classifications of vehicles are indicated by the color of their license plates. For example, the colors of license plate for Private owned vehicles and Government owned vehicles are different.
Private.
Privates vehicles in Nepal use Red license plates with white letters.
Public.
Public vehicles of Nepal have license plates with black licence plates with white letters.
Government.
Nepalese vehicles owned by the government have white licence plates with red letters.
National Corporation.
The National Corporation like Nepal Telecom, Dairy Development Corporation, Nepal Electricity Authority etc. use Yellow number plates with blue letter.
Tourist.
Vehicles meant for the transportation of tourists use green plates with white letters. Such vehicles are owned by travel agencies and hotels.
Diplomatic.
Vehicles registered in Nepal under the name of foreign diplomatic agencies such as embassies, consulates, or missions use blue plates with white letters.