Originally Posted by lawnboy
It was a Federal court ruling on the constitutionality of a provision in a Maryland State law. It could apply the the entire US, but likely each State with laws and provisions similar to Maryland would have to be challenged separately.
No, and yes. Every state with similar statutory provisions has to be challenged separately. So "yes" on that part.
Now for the "no" part. It's a district (trial) court ruling, so it could be cited as persuasive
authority in a challenge to a state law with similar provisions. However, it's not binding
authority on any other district court, inside or outside the 4th Circuit.
Once it goes up on appeal, the appellate court (Fourth Circuit) will make a decision, and that decision will be binding
on all Fourth Circuit district courts. The 4th Circuit decision can be cited as persuasive
authority in district courts of other circuits.
If it is then appealed to SCOTUS, the SCOTUS decision will be binding on all circuit courts of appeal and all district courts.