DNV, authorities and major industry partners have developed the world’s first guideline for the transmission of CO2. Its unified approach will ensure that CO2 is transmitted in offshore and onshore pipelines in a reliable, safe and cost-effective manner. There is a growing awareness among authorities and in the industry of CO2 as a substance for transmission in large and geographically interconnected pipeline systems. This was the motivation for Det Norske Veritas (DNV) initiating a joint industry project one year ago. Existing pipeline standards had to be extended to incorporate specific guidelines for the transmission of CO2. The joint industry project, named CO2Pipetrans, has now made an important contribution in delivering the world’s first industry guideline for the safe, reliable and cost-effective transmission of CO2 in pipelines. The partners include: ArcelorMittal, BP, Chevron, Dong Energy, Gassco, Gassnova, ILF, Petrobras, Shell, StatoilHydro and Vattenfall. Special acknowledgement is also given to representatives of the Health and Safety Executive in the UK, the State Supervision of Mines in the Netherlands and the Petroleum Safety Authority in Norway. The guideline will be a supplement to current pipeline standards like ISO 13623, DNV OS-F101, ASME B31.4 and others.