This guide serves as a comprehensive procedure for crisis communication within VINCI, outlining the framework that all business lines and subsidiaries must adhere to while accommodating the Group's diversity. It supplements existing crisis procedures by providing a common baseline and specifies when VINCI's Communications Department should be alerted. The guide details the objectives of VINCI's crisis procedure, including determining involvement levels, describing collaboration during crises, and explaining the crisis unit's operation. It emphasizes the importance of timely reporting and effective communication to manage crises that could impact the Group's image and economic performance. The guide also identifies various crisis situations that necessitate immediate alerting of the head office and outlines the roles and responsibilities within the crisis unit. It highlights the need for a coordinated response and a shared communication policy to ensure that all levels of the Group are aligned in crisis management efforts.