Last updated: July 2026

If you've scrolled the Rocky Point Facebook groups lately, you've seen the same question a dozen times: do I actually need a passport to drive down? The short answer is a little more nuanced than yes or no — and there's a second rule most people forget about that's now being enforced. Here's the plain-English version.

The short answer: what you need to get back into the U.S.

The document that matters most is the one U.S. Customs asks for when you drive back across at Lukeville. If you're 16 or older, you need one of these:

  • A U.S. passport book — works for any travel, by land, sea, or air.
  • A U.S. passport card — cheaper, wallet-sized, and fine for driving. Just know it's valid by land and sea only — you can't fly internationally on it.
  • An Enhanced Driver's License (offered by a few states), or
  • A Trusted Traveler card — SENTRI, Global Entry, or NEXUS (SENTRI also gets you the faster lane at the border).

Kids under 16 can come back by land with just an original or copy of their birth certificate. Teens 16–18 traveling with a school, church, sports, or youth group can also use a birth certificate under adult supervision.

One practical tip: if there's any chance you'd need to fly home in an emergency, get the passport book, not just the card — the card won't get you on a plane.

The part people miss: Mexico's tourist permit (FMM)

Here's the rule that trips people up. Mexico requires foreign visitors to carry a tourist permit called an FMM (Forma Migratoria Múltiple). For years it was enforced loosely at the Sonoyta crossing — some people got asked, most got waved through — but Mexican officials announced stricter enforcement starting in 2025, so it's no longer smart to count on being waved through.

The good news is it's simple and cheap:

  • Free for stays of 7 days or less.
  • About $42 USD (roughly 860 pesos) for 8 to 180 days (good for multiple entries over six months).

How to get it: fill it out online at the INM (Mexican immigration) website before you leave, print the confirmation, then stop at the INM office in the Aduana building just past the Sonoyta crossing to get it stamped. Bring a valid passport for each person and the address where you're staying. (The FMM is for foreign citizens — if you hold Mexican citizenship, it doesn't apply to you.)

Driving down: two more things you actually need

  • Mexican auto insurance — required. Your U.S. auto policy does not cover liability in Mexico. Mexican law requires liability coverage from a Mexican insurer, and you can buy it by the day or the trip online before you cross.
  • A vehicle import permit (TIP) — NOT needed. Rocky Point sits inside the Sonora Free Zone, so you skip the temporary-import permit and deposit that deeper parts of Mexico require. Just bring your valid vehicle registration and your Mexican insurance.

A quick note on hours: the Lukeville–Sonoyta crossing runs 6 a.m.–8 p.m. daily (with extended Friday hours in the busy season), so plan your drive around them.

Your quick pre-trip checklist

  • Passport book or card (or enhanced DL / Trusted Traveler card) for everyone 16+
  • Birth certificate for kids under 16
  • FMM tourist permit — filled out online and printed (stamp it at the border)
  • Mexican auto insurance for your trip dates
  • Vehicle registration in the car (no TIP needed for Sonora)

Official sources (confirm before you travel)

  • U.S. Customs & Border Protection — Western Hemisphere Travel Initiative (accepted documents): cbp.gov
  • Mexican immigration (INM) — FMM tourist permit: inm.gob.mx
  • U.S. Department of State — Mexico international travel information: travel.state.gov

I'm a Realtor, not a customs officer or an immigration attorney. Border rules and how strictly they're enforced can change — sometimes without much notice. Use this as a starting map, then confirm the current requirements with the official sources above before you travel.

Got a Rocky Point question — border, property, or otherwise? I've spent 10+ years helping Americans and Canadians buy, build, sell, and settle in on the Sea of Cortez. Reach out anytime.

— Joseph Sanchez, Team Sanchez · RE/MAX Legacy · Puerto Peñasco, Sonora

Joseph Sanchez is an AMPI-certified real estate agent with RE/MAX Legacy and the developer of Viviente at Sandy Beach. He serves as president of Rocky Point Home Builders and is a proud U.S. Veteran. Originally from Chicago and a Southern Illinois University at Carbondale alumnus, Joseph now resides full-time in Puerto Peñasco with his wife and three children for over 15 years. For more information email rockypointrealestate911@gmail.com.