Emissions testing laws are a crucial component in the fight against air pollution and climate change, yet these regulations vary significantly across the United States. Understanding these differences ...

It's a question you may find yourself asking in matters of government. "Is it really a good thing or isn't it," said JJ Carpenter of Susquehanna County. This one involves your car -- and that added ...

Add Yahoo as a preferred source to see more of our stories on Google. Legislation to eliminate emissions testing in Maryland would put the state in violation of federal law and at risk of losing tens ...