Vancouver is a city in Canada.
It is illegal to hitchhike Westwards of Golden, BC. Thumbers are issued a fine and drivers are issued a bigger fine.
Hitchhikking is not illegal along the Sea-to-Sky Highway (Hwy99 - Vancouver to Whistler).
Where it is illegal or cannot be conducted in a safe manner, signs are clearly posted that indicated that picking up hitchikers is prohibited. (From a Sepetember 14th, 2006 letter from Kevin Falcon - BC Transportation Minister reference:#149730).