This flyer provides information on the Maintenance Decision Support Systems (MDSS) deployed by many local and state maintenance departments to consistently make effective decisions during weather events. The MDSS has assisted agencies to reduce winter maintenance labor costs, use less material in event response, improve situational awareness of weather conditions, increase confidences in winter maintenance decision-making, and continue maintenance improvements. The MDSS is intended to assist, not replace, the years of acquired expertise, skills, and judgment that reside in maintenance operators.