No restrictions. But if you return it in another state, it may effect price.
We've rented Enterprise several times, for short and extended rentals, they tend to be one of the better companies, they don't have any restrictions for a trip like that, as long as your able to qualify to rent the car you are good to go, we've done a Cali, Nev, Ariz trip awhile back. I would avoid the Federal Way location to be safe, most Enterprises are great but that one has had some pretty glaring paperwork mistakes, I'd been warned but they were closest so.... It was a pricey choice, one I wish I had it to do over again, I'd probably try Kent or even the Airport if I could get a great deal that negated the extra fees charged. Good luck and have a safe trip.
The only restriction I remember was to stay in the continental US
Not that i know of... hace a fun safe trip..
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