AFAIK, they're required by the EPA everywhere in the USA. Along with
a fine of $150 per each non-compliant can sold by any retailer.
That's why you can't find the non-compliant ones anymore
Picked up two 5 GAL (there were more) at a Mobile Home park "sidewalk sale"
last Spring.
$ 1.50 and $ 2.00 ea.
Got some DIAZINON for FREE too ! Still factory sealed