Sorry A Guy, I wasn't implying that 100% of CA residents are responsible.
By "signs everywhere" are you referring to the labeling requirements in that doc? Or large, physical signs, viewable from a distance?
Saw Gray Davis signed the new language added, who was Gov. when it first was made law?
I searched for a list of the chemicals but could only find additions to an apparently already existing list. One of the apparent additions was nitrous oxide, a.k.a. "laughing gas".
Edit: found the full list.