I'll clarify. Reading through the laws of the state boards and having extensive contact with them, IMGs that do any rotations in the states are expected to have those rotations as greenbook (or in most states, just cores), but those core clerkships or any other rotations done outside of the states are exempt of this requirement. Eg. A Russian graduate completes all medical school in Russia, and Texas wasnts core rotations to be greenbook for permanent licensure, that graduate will not be deneid licensure due to the fact that all rotations were conducted outside the US and thus those rotations were exempt of any greenbook requirement by the board.