Well intended overreach gone amuk! While the intent is to inform and protect consumers the problem is that labeling the heck out of everything is like the "The boy who cried wolf." folks just go numb at seeing the label everywhere and ignore them altogether which makes them useless and just an added cost (that always gets passed on to consumers) . Far better to limit labels to those things that are a real concern IMO.Chrome is on the EPA hazardous metal list. So is silver, yes, lead, of course arsenic. This isn't just a gun law; it applies to any consumer product sold in California. Usually you can find the statement in the product documentation. I believe that includes owners' manuals for cars.