Eager customers lined up before dawn on Tuesday as Washington became the second U.S. state to allow the sale of marijuana for recreational use, although shortages and high prices were likely to accompany any euphoria.

Store employees clapped and cheered at Top Shelf Cannabis in the northern city of Bellingham as its first buds were sold to a 29-year-old from Kansas, Cale Holdsworth.

"I'm happy to be a part of history," said Holdsworth, who was on vacation visiting family and took his place at the front of the line at about 4 a.m.