This panel will drive discussion around the need to define a measurement standard that is traceable and recognized which can deal with fluids that may cross phase boundaries or behave in non-standard ways such as CO2. It will also discuss technologies that have the most hope for being able to meet that standard and the accuracy it will require. How do we calibrate, how do we prove the measurement, etc. The session will highlight how dynamic measurement of carbon streams will become increasingly important as the CCUS landscape moves from regionalized, academic undertakings to a global carbon economy.