Colorado regulators are planning to create a surveillance program for off-the-shelf testing of marijuana products to protect consumers, after admitting that contaminated marijuana has made its way to ...

The height of summer is here, and while many people come to Colorado to enjoy the beauty of its mountains, canyons, dunes, and hiking trails, marijuana tourism also draws many to the state.

As the first state to legalize recreational marijuana, Colorado has been a leader in establishing industry regulation to help ensure products are safe for human consumption. More than a decade ...

A new study documents a sharp rise in emergency-room visits linked with marijuana following legalization in Colorado. A key driver of the ER trips appears to be edibles like weed brownies and cookies.

One of these samples is from Colorado, which legalized adult recreational marijuana use in 2014 and now has widespread commercial marijuana readily available to consumers. The other sample is from ...