Implementation of Directive 2009/31/European Commission (EC) on the Geological Storage of Carbon Dioxide (CO2): Guidance Document 2, Characterisation of the Storage Complex, CO2 Stream Composition, Monitoring and Corrective Measures

This document builds on the first European Commission (EC) Geological Storage of Carbon Dioxide (CO2) Guidance Document, which laid out the overarching framework and nomenclature for the entire lifecycle of geological sequestration activities, including its phases, main activities, and major regulatory milestones. This document provides guidance on site selection, composition of the carbon dioxide stream, monitoring, and corrective measures.