What are the policy rules and identification requirements for driving a rental car from SeaTac across the border into Canada?

When renting a vehicle from the SeaTac Rental Car Facility and planning to drive across the border into Canada, customers must adhere to strict international driving and cross-border policies. First and foremost, renters must inform the rental company at the time of booking or at least 24 hours before departure to ensure the vehicle is authorized for international travel. Some vehicle classes may be restricted from leaving the United States. Upon reaching the Canadian border, all occupants must present a valid, unexpired passport. Enhanced Driver's Licenses or Trusted Traveler Program cards (like NEXUS) are also acceptable. Furthermore, the primary renter must carry the physical, original rental agreement inside the vehicle at all times; digital copies or receipts are typically not accepted by the Canada Border Services Agency. If the renter is not a US or Canadian citizen, a valid International Driving Permit (IDP) accompanying the home country license is mandatory. Additionally, the renter must carry proof of auto insurance that explicitly covers international travel. Border crossing wait times can average 30 to 60 minutes during peak travel seasons, so planning accordingly is essential. Failure to produce the required documentation will result in denied entry into Canada and potential breach of the rental agreement, incurring a penalty fee of up to $250.