Natural gas vehicles (NGVs) are vehicles that run on compressed natural gas (CNG) or liquefied natural gas (LNG) instead of traditional gasoline or diesel. They are designed to be more environmentally friendly, producing fewer emissions and pollutants. NGVs can be used for personal cars, buses, and trucks, making them a versatile option for various transportation needs. The use of natural gas as a fuel source is gaining popularity due to its abundance and lower cost compared to other fossil fuels. Many countries are investing in infrastructure to support NGVs, including refueling stations and government incentives to encourage their adoption.