Effective major incident response relies on clearly defined roles, robust communication protocols, and ongoing training. This toolbox talk delivers an in‑depth overview of each key role, explaining how to activate the emergency response plan, allocate resources, conduct continuous risk assessments and maintain situational awareness. Using approved radio frequencies, maintaining a detailed incident log and providing regular status updates enables teams to coordinate actions, minimise confusion and protect staff, the public and assets. The content also covers legal obligations under the Health and Safety at Work Act 1974, HSE guidance and BS EN 374 standards for personal protective equipment. It highlights the importance of liaison with external emergency services, thorough post‑incident debriefs and the updating of training records. Regular scenario‑based drills, clear documentation of decision‑making processes and periodic reviews of communication protocols strengthen organisational resilience. Continuous improvement cycles, informed by lessons learned, ensure compliance, protect employees and the wider community, and foster a proactive safety culture that reduces response times and improves overall incident outcomes. Implementing these practices not only meets regulatory requirements but also builds confidence among stakeholders, demonstrating dedication to safety excellence and operational continuity. By regularly reviewing and updating the communication plan, the organization can adapt to emerging threats and maintain high standards of incident management.