What Mexican license plates look like and how to read them

Mexican license plates follow a standard format that changed in 2007. The current system uses a combination of letters and numbers arranged as three letters, then four numbers, then two more letters — for example, ABC 1234 XY. The first three letters represent the state where the vehicle is registered. The four numbers are sequential and assigned by the registry office. The final two letters are a security feature that changes periodically.

Before 2007, Mexico used a different format: two letters, then five numbers, then one letter. If you see an older plate on a classic car or vintage vehicle, that is the previous system. The color of the plate itself is white with black text, which is standard across all Mexican states. Some specialty plates — diplomatic, government, or temporary — use different colors or formats, but standard civilian vehicles all use white plates.

The state abbreviation at the start tells you where the vehicle owner registered it. This does not necessarily mean the car stays in that state; it just shows where the registration was issued. A car registered in Jalisco (JA) can legally drive in Oaxaca or any other state.

Key Takeaways

  • Mexican plates use three letters (state code), four numbers (sequential), and two letters (security feature) in the format ABC 1234 XY.
  • The first three letters identify the state where the vehicle is registered, not where it currently is.
  • Plates issued before 2007 use an older format with two letters, five numbers, and one letter.
  • Temporary plates issued for short-term use have a different format and are typically valid for 30 days.
  • Mexican vehicles crossing into the United States need additional documentation beyond the license plate.

State codes and what the letters mean

Each Mexican state has a two-letter abbreviation that appears at the start of the plate. These codes are assigned by the federal registry office (Registro Público Vehicular). Some common examples: AG for Aguascalientes, BC for Baja California, BS for Baja California Sur, CM for Campeche, CS for Chiapas, CH for Chihuahua, CX for Ciudad de México (Mexico City), CO for Coahuila, DG for Durango, GT for Guanajuato, GR for Guerrero, HG for Hidalgo, JA for Jalisco, MX for Estado de México, MI for Michoacán, MO for Morelos, NA for Nayarit, NL for Nuevo León, OA for Oaxaca, PB for Puebla, QT for Querétaro, QR for Quintana Roo, SL for San Luis Potosí, SI for Sinaloa, SO for Sonora, TB for Tabasco, TM for Tamaulipas, TL for Tlaxcala, VZ for Veracruz, YU for Yucatán, and ZA for Zacatecas.

If you see a plate starting with CX, that vehicle is registered in Mexico City. If it starts with NL, it is registered in Nuevo León. This information is useful if you are checking a vehicle's origin or verifying registration details, though it does not tell you where the car currently is or where it is being driven.

Temporary plates and short-term registration

Mexico issues temporary license plates for vehicles that need to be driven before permanent registration is complete, or for vehicles being exported temporarily. Temporary plates typically have a different appearance — often with a red or orange stripe and an expiration date printed directly on them. These plates are valid for 30 days in most cases, though some can be extended.

Temporary plates follow a different numbering system than permanent plates and are issued by the same registry office that handles permanent registration. If you purchase a vehicle in Mexico and need to drive it home before the permanent plate arrives, the dealer or registry office will issue a temporary plate. These are not valid indefinitely; once they expire, the vehicle cannot be legally driven until a permanent plate is obtained.

If you are importing a vehicle from Mexico into the United States, a temporary Mexican plate alone is not sufficient. You will need a temporary import permit (TIP) from Mexican customs, vehicle registration documents, and proof of Mexican liability insurance. The temporary plate shows the vehicle is registered in Mexico, but crossing the border requires additional paperwork.

Specialty plates: diplomatic, government, and commercial

Mexico issues specialty plates for vehicles owned by government agencies, diplomatic missions, and commercial operators. Diplomatic plates typically use a different color scheme and include a country code. Government vehicles may have a special prefix or suffix. Commercial plates for taxis, buses, and commercial trucks sometimes include additional markings or different formatting to distinguish them from private vehicles.

These specialty plates are not something a typical vehicle owner will encounter unless they work for a government agency or diplomatic mission. If you see a plate that looks significantly different from the standard white plate with black letters and numbers, it is likely a specialty plate issued for a specific purpose. The format and meaning of these plates can vary by state and by the type of government or commercial use.

How Mexican plates differ from U.S. plates

Mexican plates are formatted differently than U.S. plates and use a different registration system. U.S. plates typically show the state name or abbreviation and vary widely in design by state. Mexican plates are standardized nationwide with the same white background and black text. The letter-number combination on a Mexican plate is assigned sequentially by the registry office, whereas U.S. plates often allow owners to choose custom combinations.

The registration process is also different. In Mexico, vehicle registration is handled through the Registro Público Vehicular (Public Vehicle Registry), which is a federal system. In the United States, registration is handled by individual state departments of motor vehicles. If you are driving a Mexican-registered vehicle in the U.S., you will need to follow U.S. import rules and may need to register it in a U.S. state depending on how long you plan to keep it there.

Driving a Mexican vehicle in the United States

A Mexican license plate alone does not give you permission to drive in the United States. You need a temporary import permit (TIP), also called a vehicle import permit, issued by Mexican customs (Aduanas). This permit is separate from the license plate and is typically valid for 180 days. You also need Mexican liability insurance; U.S. insurance does not cover vehicles registered in Mexico.

When you cross the border, U.S. Customs and Border Protection will check your vehicle documents, the TIP, your Mexican insurance, and your identification. The Mexican license plate identifies where the vehicle is registered, but the TIP is what allows you to temporarily bring it into the United States. If your TIP expires while the vehicle is in the U.S., you cannot legally drive it until you renew the permit or register it in a U.S. state.

If you plan to keep a Mexican vehicle in the United States long-term, you will need to register it in a U.S. state and obtain U.S. license plates. This process varies by state but typically requires proof of ownership, a bill of sale, and sometimes a vehicle inspection. Some states require you to import the vehicle through customs first and obtain a U.S. title before registration is possible.

Reading and verifying a Mexican plate

To read a Mexican plate, start with the first three letters to identify the state. Then look at the four numbers, which are sequential and assigned by the registry office in that state. The final two letters are a security feature. If you need to verify information about a vehicle with a Mexican plate, you can contact the Registro Público Vehicular in the state where the plate was issued, though access to detailed vehicle information may be restricted.

If you are buying a used vehicle in Mexico, the license plate and registration documents should match. The plate number should appear on the vehicle's title (título de propiedad) and registration certificate (comprobante de registro). If you are checking a vehicle before purchase, verify that the plate number on the physical plate matches the number on the paperwork. Mismatches can indicate a stolen vehicle or registration fraud.

Frequently Asked Questions

Can I drive a Mexican-registered vehicle in the United States without a temporary import permit?

No. You need a temporary import permit (TIP) from Mexican customs, Mexican liability insurance, and a valid passport or travel document. The license plate shows the vehicle is registered in Mexico, but the TIP is the legal document that allows you to bring it across the border. Without it, U.S. Customs will not allow the vehicle to enter.

What does the first three-letter code on a Mexican plate mean?

The first three letters are the state code showing where the vehicle is registered. For example, JA means Jalisco, NL means Nuevo León, and CX means Mexico City. This does not indicate where the vehicle currently is, only where the owner registered it with the Registro Público Vehicular.

How long is a temporary Mexican license plate valid?

Temporary plates are typically valid for 30 days from the date of issue. Some can be extended, but you must contact the registry office in the state where it was issued. Once a temporary plate expires, the vehicle cannot be legally driven until a permanent plate is obtained or the temporary plate is renewed.

Do I need to convert my Mexican license plate to a U.S. plate if I move to the United States?

Yes, if you plan to keep the vehicle in the U.S. long-term. You will need to register it in a U.S. state and obtain U.S. license plates. The process varies by state but generally requires proof of ownership, a bill of sale, and sometimes a vehicle inspection. Your Mexican registration and plate will no longer be valid once you register the vehicle in a U.S. state.

What if the license plate number does not match the vehicle registration documents?

This is a red flag and suggests possible fraud or theft. Do not purchase the vehicle. Contact the Registro Público Vehicular in the state where the plate was issued to report the discrepancy, or contact local authorities if you suspect the vehicle is stolen.