It is interesting. I haven't read all the laws, but I'd guess that the "occupy the field" standard could come into play. Basically, even when there is no dire

It is interesting. I haven't read all the laws, but I'd guess that the "occupy the field" standard could come into play. Basically, even when there is no direct conflict between state and federal law and even when federal law does not expressly say that the states can't legislate on the topic, sometimes the federal law is so broad and pervasive that it's clear that it's meant to preempt state laws on the topic. https://en.wikipedia.org/wiki/Federal_preemption#Field_preemption https://en.wikipedia.org/wiki/Federal_preemption#Field_preem...