Washington state officials release proposed rules for marijuana sales . Up to 334 retail marijuana stores could be opened in the state , they say . Officials estimate that 13 % of marijuana users in the state will go through licensed retailers at the outset , and that the number will increase to 25 % by the end of the year , according to Mikhail Carpenter , a spokesman for the liquor control board . They use population estimates to determine how many stores should open . Washington voters approved a referendum legalizing marijuana in Washington .
Washington state officials release proposed rules for marijuana sales . Up to 334 retail marijuana stores could be opened in the state , they say . They use population estimates to determine how many stores should open . Washington voters approved a referendum legalizing marijuana in Washington .