US Development Group, LLC (USDG), and its subsidiaries USD, LLC (USDL) and CBRH Holdings, LLC (CBRH), will collectively pay a civil penalty of $2.4 million to resolve violations of the Clean Air Act (CAA) associated with the Van Hook Crude Terminal crude transloading facility the companies formerly owned and operated in Mountrail County, North Dakota on the Fort Berthold Indian Reservation. EPA's enforcement action arose as a result of the companies constructing and operating the terminal before receiving a CAA Tribal Minor New Source Review permit, a clear violation of the CAA. The companies also violated several New Source Performance Standards (NSPS) requirements in 40 C.F.R. Part 60, Subpart A and Kb that applied to the facility's storage tanks, including failing to notify EPA prior to commencement of construction of, and subsequent filling of, the tanks.