To rent an RV in Dallas and travel in the U.S., you’ll need a valid passport and either an ESTA or a visa for entry. Most visitors can stay for up to 90 days with an approved ESTA under the Visa Waiver Program, which should be applied for at least 72 hours before departure. If you’re not eligible, you’ll need a B-1/B-2 visitor visa instead. At the border, U.S. Customs and Border Protection may ask about your trip, so be prepared to show proof of onward travel, accommodation, and funds. For the most reliable and up-to-date details, always check the official U.S. government website before you travel.