Wildfire in Colorado OPEN BURNING BANNED IN COLORADO June 10, 2002 A statewide ban on open burning. For purposes of this order, open burning is defined as any outdoor fire, including but not limited to campfires, warming fires, charcoal grill fires, and the use of any fireworks. For purposes of this order, open burning does not include: a) gas or charcoal grills located at private residences; b) ...