When it comes to working out of state, different unions have different rules for working out of state. So if you're in a union, check with a business rep. If you're not in a union you can work any non union work you want in any state. However, if you want to work in a union state and you're not in the union you probably won't be able to work union jobs. There are exceptions so check with the local unions.
I know it's a round-a-bout answer, but with such little information, it's what I've got...
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