We can all play a part in helping to clean Maryland’s air. Vehicle idling results in emissions of carbon dioxide, particulate matter and nitrogen oxide - all pollutants that harm the environment. Additionally, idling represents a significant health issue for children and people with existing respiratory issues like asthma and emphysema. Because of these reasons, many states have identified idling as an important issue that needs to be addressed.

The Maryland Department of the Environment is committed to bringing together citizens, the trucking industry, schools and educational institutions, and other stakeholders to realize that five minutes matter when you needlessly idle your engine.

Our Idle Free MD program is just getting started. Check back often for updates or sign up to join our mailing list.​​​​​


IdleFree MD Toolkit

The Idle Free MD toolkit materials below are available for anyone to use and free of copyright restrictions.

Resources for Maryland Communities


Social Media

Fliers and Posters

Resources for Transportation Industries


Resources for Schools



Letters and Documents

Signs and Decals