> The California Air Resources Board (CARB) is stricter on their regulations. CARB requires more precious metals and rigorous testing which is why they cost more than EPA catalytic converters.
https://autoquarterly.com/best-catalytic-converters/#Federal...
The reverse of say California not being able to define limitations because they have too many people that would agree it becomes a logistical standard would be a bizzare illogic and pretty hypocritical.
Automakers, textbook writers, etc cater to the largest state they serve (or the lowest common of several large markets), then distribute the same version to multiple locations.
In the case of cars, which have to adhere to California regulations to be sold in California, that can drive up the price in other markets due to expensive parts required for compliance and auto-manufacturers standardizing.
It’s also more constructive to explain why people are wrong (eg, why you think car regulations one place can’t impact the price in others) than just call them stupid.
The way interstate commerce clause is used is to give federal government ability to intervene, not another state government.
Quite impressive cognitive dissonance.