+An **Emissions Test** measures the pollutants released from a [Vehicle](/wiki/Vehicle)'s exhaust system. This regulatory check ensures engines comply with standards, safeguarding [Air Quality](/wiki/Air_Quality) and public health. It's a key step in reducing environmental impact from transportation.
+## See also
+- [Smog](/wiki/Smog)
+- [Catalytic Converter](/wiki/Catalytic_Converter)
+- [Environmental Law](/wiki/Environmental_Law)