DNV and the energy industry, with valuable contribution from government agencies, have developed a comprehensive guideline for safe and sustainable geological storage of CO2. This unified procedural framework is intended for global use, supporting both industry and regulators, and is a breakthrough that should speed up the large scale deployment of Carbon Capture and Storage (CCS). Deployment of CCS has been hampered by a lack of tailored regulatory frameworks and established industry practices. This was the key motivation for developing the CO2QUALSTORE Guideline for Selection, Characterisation and Qualification of Sites and Projects for Geological Storage of CO2. Full copies of the guideline are available on the homepage.