Colorado can now use remote sensing to check car emissions

Colorado changed how it checks car emissions. Instead of just tailpipe tests, it can now use remote sensors on roads. This means the state can catch more polluting cars without requiring every driver to go to a testing station.

For decades, car emissions checks meant taking your car to a specific place for a tailpipe test. This was expensive and inconvenient for drivers, and it only captured a snapshot of a car's emissions. Now, Colorado can use sensors that measure emissions as cars drive by, making it harder for high-polluting vehicles to avoid detection. This shift could make emissions enforcement more efficient and effective, potentially improving air quality in urban areas.