DAC refers to Direct Air Capture. Direct Air Capture is a technology that involves removing carbon dioxide (CO2) directly from the atmosphere. The primary goal of DAC is to capture CO2 from ambient air, concentrate it, and either store it underground or use it in various industrial processes. Much like CCUS, the intention of a DAC facility is to remove CO2 from the atmosphere. The primary difference is that CCUS removes CO2 from emissions at source, whereas Direct Air Capture removes CO2 from the ambient environment. This poses challenges to the scalability of DAC. The concentration of CO2 in the ambient air is so low that concerns around energy consumption, cost, and scalability remain challenges for DAC.  While CarbonKerma will list DAC-derived CO2 that is sequestered under an EPA-approved MRV Plan or in accordance with ISO Standards and other regulations outside the US, the scale required to make a significant impact on atmospheric CO2 levels is beyond what is currently available in the market.