Define Clean Air Meaning

Clean Air

A time, long, long ago when oxygen was not combined with the toxic waste and government stench. Clean air no more.
By Beret
Gateway Clean Air Program
A emissions testing program in St. Louis that requires drivers to have clean and efficient running cars in order to have license plates.
Can be a hassle, espically with older vehicles, and can get costly if you don't pass it.

1. Get your car running yet?
2. Nope. Failed the Gateway clean air program twice now.
By Marylinda