How long are all U.S. driver's licenses valid upon arrival to Guam?

All U.S. driver's licenses are valid for a period of 30 days upon arrival in Guam. This means that individuals can use their valid U.S. driver's license to operate a vehicle in Guam without needing to obtain a local driver's license for that duration. Beyond the initial 30 days, residents or visitors would need to comply with local regulations, which might involve securing a Guam driver's license if they plan to stay longer.

This policy helps facilitate ease of transition for travelers and residents who are new to the area, allowing them to have sufficient time to adjust without the immediate need for additional paperwork. Recognizing this 30-day validity period can be crucial for anyone planning to drive in Guam, ensuring that they are in compliance with local driving laws and regulations during their stay.