The Colorado Hazardous Waste Management Society, Inc. (CHWMS) is a nonprofit organization, created in 1985 to provide a forum for the exchange of information concerning technologies, laws and regulations, and other current developments pertaining to environmental health and safety matters and waste management issues.

CHWMS membership consists of technical and legal professionals from environmental organizations, the government, academia, industry and the private sector. Members generally work in the environmental, health and safety fields.

CHWMS provides information about current environmental health and safety development to its members through newsletters, monthly luncheon meetings, semi-annual workshops, and other reference materials.