Cars keep getting cleaner, and Washington phased out its vehicle emissions testing program in 2020. But in the Portland and Medford metro areas, getting vehicle registration renewed still requires a stop by a DEQ testing site. Read more: https://www.kgw.com/article/news/local/the-story/oregon-dmv-deq-vehicle-emissions-testing-registration-program-washington/283-200747ec-1146-4633-9b9e-c1d839f740a5 Editor's note: An earlier version of this story erroneously tied greenhouse gas emissions to Oregon's testing program. That was incorrect — the program tests for air pollutants like hydrocarbons that contribute to smog. We've issued a correction and removed incorrect information wherever possible. Watch more The Story videos: http://bit.ly/watchTheStory Follow The Story on Twitter: https://twitter.com/TheStoryKGW Follow The Story on Instagram: https://instagram.com/thestorykgw