Incidents involving hazardous substances may have very serious consequences for the people affected, for society as a whole and for the emergency response personnel involved in the incident. Collective planning and interaction are required in order to implement effective response measures. We will be presenting here a number of development projects, both completed and in progress, such as national reinforcement resources intended to support the municipal, fire & rescue services in the case of incidents involving hazardous substances,  first on scene, a brochure formulated for the fire & rescue services, medical services and police, recommendations for creation of measures for better cooperation between “blue light authorities” and training, etc. The purpose of this brochure is to provide an overview of work completed and in progress. Broshyren finns även utgiven på svenska.