Emissions Test In Texas 2025 Schedule. The 17 texas counties that require emissions inspections will still mandate annual emissions tests regardless of the bill becoming law. A closer look at available testing sites is available online.

An emissions test consists of an engine and exhaust check, along with a visual inspection, to measure the amount of pollutants released meet the legal limit set by the state. Texas will be dropping vehicle safety inspections in 2025, but emissions testing will still be required for vehicles registered in denton county and 16 other counties.