There is absolutely no smog requirements here.  There may be some but people don't follow it and it is not enforced.  It is so so so dirty!  I feel like just walking down the street loses all of it's exercise value because as each bus drives by it looks like this!   I finally got a good picture of it. In the second photo you can hardly see the bus! It is so disgusting and I am not exaggerating at all.  I am also amazed at how dirty we are and how dirty our clothes are. The girls' feet are always dirtier than I can believe, their socks are dirty on the outside AND on the inside!  Isn't that funny!

This is actually not too bad.  I will catch a better photo soon.