How often must a vehicle pass an emissions test in Nevada?

In Nevada, vehicles are required to pass an emissions test every two years, as part of the state's efforts to monitor and control air pollution. This biennial requirement applies to most vehicles that are registered in specific counties where air quality is a concern. The regulation aims to ensure that vehicles on the road meet emissions standards, thereby contributing to cleaner air quality in the state.

If a vehicle fails its emissions test, the owner must obtain the necessary repairs and retest the vehicle to ensure compliance. Exceptions to the two-year testing may apply based on specific situations or regulations, but for the majority of vehicles, the two-year interval is the standard. This requirement is an essential part of the state's environmental policy, making option B the accurate choice.