The EPA has approved a permit for Marquis Carbon Injection LLC to store carbon dioxide underground in Putnam County, Illinois. The project will allow up to 9 million metric tons of CO₂ to be injected over six years, with long-term monitoring designed to protect drinking water and support local economic development.

The EPA has approved a permit for One Carbon Partnership to inject and store up to 13.5 million metric tons of CO₂ underground over 30 years at an ethanol facility in Randolph County, Indiana, with monitoring requirements extending 50 years post-injection to protect drinking water sources.