South Dakota residents voted to repeal Senate Bill 201, legislation meant to pave the way for the construction of a major carbon pipeline across the Midwest, a controversial project supported by local corn grower associations but opposed by environmentalists and many local landowners.

Voters favored no on the “Regulation of Carbon Dioxide Pipelines Referendum,” a referendum on legislation making it easier for carbon pipeline companies and other developers to build projects by superseding local permitting restrictions. The bill was intended specifically to aid the Summit Carbon Solutions proposed pipeline project, which would stretch 2,500 miles, sending carbon emissions from 50 ethanol plants in Iowa, Minnesota, Nebraska, North Dakota, and South Dakota to be buried underground in North Dakota.