Marijuana edibles will look different in Colorado starting Oct. 1, among many new state rules

Beginning Saturday, medical and recreational marijuana edibles and other cannabis products sold in Colorado will be stamped with a new “universal symbol” aimed at raising public safety awareness.

The universal symbol — a diamond enclosing the notations “! THC” or “! THC M” — is part of a bundle of new state marijuana regulations going into effect on Oct. 1. In addition to new equivalency regulations for retail marijuana, other rules effective Saturday include the barring…