Under the Colorado Noxious Weed Act, all Boulder County property owners must manage noxious weeds likely to damage neighboring land. List A and List B species carry mandatory eradication or containment on public and private property.
Colorado law imposes a general duty on every landowner to control noxious weeds. Boulder County's Integrated Weed Management Program is run under Article 5.5 of Title 35, C.R.S., the Colorado Noxious Weed Act, and Community Planning & Permitting enforces compliance in unincorporated areas. State List A species must be eradicated and List B species must be managed to stop spread; it is a violation to let them produce seed or reproduce. Management of List C species is recommended but not required on private land in Boulder County. The county may inspect, notify owners, and, if unaddressed, arrange abatement.
After inspection and written notice, owners who fail to manage designated weeds may face county-arranged abatement with costs assessed to the property.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Boulder County, CO
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