This CoP strengthens the procurement of zero-emission bus systems and services, equipping public authorities with the knowledge, skills, and resources needed to meet the EU’s zero-emission urban fleet targets. As a vital platform for collaboration, it provides practical tools, expert guidance, and peer support to help navigate the challenges of sustainable bus procurement and deployment.

Building on the achievements of the Clean Bus EU Platform, the CoP aims to support the procurement and deployment of battery-electric and hydrogen-powered buses with zero tailpipe emissions. Its scope includes lifecycle emission assessments, infrastructure development (charging, depots, and maintenance), and capacity-building initiatives such as driver and technical staff training. 

The initiative aligns with EU policies, including CO₂ emissions standards requiring 90% zero-emission buses by 2030 and 100% by 2035, as well as the Clean Vehicles Directive, which sets minimum procurement targets for zero-emission vehicles. Key subtopics addressed include infrastructure readiness, renewable energy sourcing, standardization, operational adaptation, and long-term financing. Stakeholders involved include public authorities (cities and transport operators), industry representatives (bus manufacturers, charging solution providers), and EU policymakers. Activities under the initiative range from peer-to-peer exchanges, site visits, and capacity-building workshops to policy advocacy and engagement with smaller and medium-sized cities to bridge knowledge and resource gaps in transitioning to sustainable urban transport.