Long lineups are expected Tuesday as the first stores in Washington state’s budding recreational pot industry open their doors to the public.

Two dozen businesses have been granted licenses so far, including two each in Tacoma, Vancouver and Bellingham. Spokane is getting three recreational marijuana stores while just one has been approved in Seattle.

It’s unclear how many will actually be stocked and ready to serve customers this week, however, as most of Washington’s legal growers don’t anticipate sending their first shipments until late summer.

Amber McGowan, manager of Cannabis City in Seattle, said her store is opening at noon Tuesday with a “fairly sparse” supply.

“We ourselves only have 10 pounds, which will sell out the first day, no doubt about that,” McGowan said.

Pot shops were also approved in a number of small communities, though not in Point Roberts, a border town south of Vancouver frequented by British Columbians.

The Canadian Border Services Agency warned travellers that it remains illegal to try bringing pot into Canada.

Anyone caught carrying legally-purchased marijuana from Washington into B.C. could face criminal charges. The CBSA said it also has the authority to seize vehicles used to transport pot over the border.

Colorado passed a referendum to legalize pot at the same time as Washington, during the November 2012 federal election, but was able to get its industry off the ground faster because it already had a regulated medical pot system in place.

Washington’s medical marijuana system remains unregulated.

The state also had to sort through almost 7,000 applications to either grow or sell recreational marijuana, each needing extensive vetting from its Liquor Control Board.

With files from The Associated Press