Development of CO 2 storage reservoirs is necessary to securely and permanently store CO 2 to ensure both net negativity of the DACCS process and prevent short-term reversals to the atmosphere. Given long permitting timelines, sufficient storage reservoirs must be identified and developed today to provide availability both now, as DAC technologies are piloted, but particularly as these technologies begin to ramp up. Storage reservoirs will be needed across the globe to support integration with multiple climate-dependent DAC technologies, and to allow multiple geographies to benefit economically. These reservoirs could be set up as pay-to-use wells within hub networks, allowing several DAC companies to collectively store their CO 2 . Liability for maintaining and monitoring stored CO 2 could be held by the storage partner, or alternatively, by a 3rd party, such as governments, to alleviate some of the risk involved. Furthermore, streamlined permitting regimes and publicly available site-specific geologic data and assessments would help de-risk storage projects for storage developers and reduce storage development timelines.