OSHA published a notice of an addendum to the 1992 interagency MOU between DOL and DOE, confirming the transfer of occupational safety and health regulatory authority for specific parcels of DOE-owned land leased to private entities for energy projects. DOE will not exercise statutory authority over occupational safety at the identified Project Parcels. The transfer takes effect April 17, 2026. Private-sector employers at the Idaho National Laboratory site fall under federal OSHA jurisdiction; employers at Hanford (Washington), Nevada National Security Site, and Savannah River (South Carolina) fall under their respective OSHA-approved State Plans.