OLYMPIA, Wash. -

A Yakima laboratory is now state certified to test marijuana.

The lab, run by testing company Analytical 360, is the first to receive state authorization, The News Tribune of Tacoma reported Thursday.

The state Liquor Control Board is setting up a highly regulated market requiring independent labs to test marijuana for potency and contaminants. Those finding will be submitted to state as part of the process to track the drug from seed to sale. Labels will tell customers the potency of what they are buying.

Analytical 360 says it plans to open the 22,000-square-foot lab on Monday. The Liquor Control Board says several other companies will likely soon receive authorization.

Washington state and Colorado both legalized the use of recreational marijuana in 2012. Sales have already begun in Colorado but sales in Washington aren't expected to start until July.