What fuels are typically subject to emissions standards in Texas?

Gasoline and diesel fuels are typically subject to emissions standards in Texas because they are the primary fuels used in the majority of vehicles on the road. These fuels are significantly linked to air quality and pollution concerns, which is why regulatory agencies implement stringent emissions standards to help reduce harmful emissions from internal combustion engines that use these fuels.

In Texas, emissions standards are designed to limit pollutants such as nitrogen oxides (NOx), volatile organic compounds (VOCs), and particulate matter, which are commonly associated with gasoline and diesel combustion. This regulatory approach is part of broader efforts to ensure compliance with federal air quality standards and improve public health and the environment.

While other options mention alternative fuels, they either do not encompass the scope of most vehicles on the road or are not subject to the same level of emissions regulations as gasoline and diesel.