Abstract: While great progress is made in terms of development and implementation on new ICT services for supporting crisis response coordination, the challenge remains on how to integrate these services within the ICT infrastructure in daily use by emergency responders. We report from an ongoing analysis of existing crisis response infrastructure in Norwegian municipalities, presenting an overview of current practice and related challenges. We argue for an information infrastructure perspective on the integration challenges, focusing on how new services based on geographic information systems and social media should be based on existing systems in use.