What are the cross-border policies for renting a car at Sea-Tac airport and driving into Canada?

When renting a car at Sea-Tac airport with the intention of driving into Canada, several cross-border policies must be understood. Firstly, renters are required to have the necessary liability documentation, which typically includes a Canadian Non-Resident Inter-Province Motor Vehicle Liability Insurance Card. This card is usually provided by the rental car company, but it's essential to confirm with them in advance. Additionally, renters must ensure their passport is valid for at least six months beyond their planned departure date from Canada. Upon crossing the border, renters may be asked to present their passport, rental agreement, and proof of insurance. It's also worth noting that some rental car companies may have specific requirements or restrictions for cross-border travel, so it's recommended to check with them at least 48 hours prior to travel. The fee for additional insurance coverage for driving in Canada can range from $10 to $30 per day, depending on the rental car company and the type of vehicle. As of 2023, the average waiting time at the Blaine-Surrey border crossing, one of the busiest crossings from Washington state into Canada, is around 30 minutes during peak travel times.