OLYMPIA, WA -- Marijuana stores in Washington state can sell marijuana in cookies, brownies and other approved baked goods but cannot put cannabis in candies, lollipops or food items that might appeal to children, according to newly released rules. Washington became the second U.S. state to allow recreational sales of marijuana to adults on July 8 when its first retail stores opened under a heavily regulated and taxed system approved by voters in 2012. The state's Liquor Control Board, which regulates the fledgling industry, published the guidelines on Wednesday for the packaging and labeling of marijuana edibles. It prohibited any products, labels or packaging designed to be especially appealing to children, including lollipops and suckers, gummy candy and jelly beans, although many of those products are already being sold in the state's medical marijuana dispensaries. To gain approval to market a marijuana infused food item, such as brownies or bottled drinks, a processor must submit a photo of the product along with its labels and packaging. The edible also has to pass a processing facility inspection and must be clearly labeled as containing marijuana. Edibles also must be tested for potency and to ensure that the marijuana derivatives are spread evenly throughout the products.