Recreational marijuana will be legal in Canada starting Oct. 17.
Border Patrol agents say they are ready for heavier traffic, which can impact anyone going to Canada.
U.S. Customs and Border Protection Chief Officer Aaron Bowen warns anyone that may try to sneak weed back into the U.S. will face anything from a fine to a zero-tolerance policy.
“A smell is obviously going to alert an officer and probably going to get you a secondary exam because we want to make sure the actual marijuana isn’t in the vehicle,” Bowen says.
Medical marijuana will also be seized at the border.
Anyone who gets caught could be arrested and fined $500.
Agents urge people planning to use marijuana in Canada to spend the night or have a designated driver.