PORTLAND, Maine (AP) — Maine marijuana enthusiasts will probably be able to purchase their preferred products in retail stores by March 2020 after years of waiting. Voters approved legal adult-use marijuana at the polls in November 2016, and the road to legal sales has been long and bumpy. But a key act passed by the Legislature is now in effect, and that means the Maine Office of Marijuana Policy is in a position to complete final adoption of marijuana rules, said David Heidrich, an office spokesman. The act made tweaks to Maine's Marijuana Legalization Act that were necessary for the marijuana office to adopt the rules, which it is expected to do within two months.Read more on NewsOK.com