Overview

• The environmental zone introduced in 2013 alongside Wiesbaden to restrict vehicles without a green sticker will end on September 30, taking effect October 1.
• Inner-city monitoring stations recorded nitrogen dioxide and particulate matter levels in 2024 significantly below the EU’s 40 µg/m³ limit.
• Mainzer Mobilität’s fully modernized bus fleet has reduced urban emissions and supported cleaner public transport.
• Mainz follows Freiburg and Heidelberg in rolling back similar restrictions after sustained air-quality improvements.
• Other municipalities such as Munich are reviewing fresh data before deciding whether to extend diesel bans to newer vehicle classes.