Air Plan Approval; SD; Update to Materials Incorporated by Reference

The Environmental Protection Agency (EPA) is updating the materials that are incorporated by reference (IBR) into the South Dakota State Implementation Plan (SIP). The Regulations affected by this update have been previously submitted by the South Dakota Department of Environment and Natural Resources (SD DENR) and approved by the EPA. In this action, the EPA is also notifying the public of corrections to typographical errors and minor formatting changes to the IBR tables. This update affects the SIP materials that are available for public inspection at the EPA Regional Office.