GoKawiilGoogle Maps uses a circled 'Z' icon to flag low-emission zones on routes
Google Maps displays a circled 'Z' icon beneath trip times when a route passes through a low-emission zone, alongside a warning that non-compliant vehicles may be fined. The feature links to official city pages and advises drivers to confirm their car meets local emission standards. Introduced in 2021 with an 'i' icon before switching to 'Z', the alerts originally covered Germany, the Netherlands, France, Spain and the UK, and Google said in 2025 it would expand coverage to over 1,000 low-emission and low-traffic zones across Europe, including Italy, Sweden and Austria.