This memorandum from the Ogden Air Logistics Center informs vendors and contractors that unmarked engineering drawings are to be treated as restricted, requiring special handling under export control laws. It emphasizes the legal consequences of unlawful dissemination and the potential penalties for violations, while also disclaiming any liability from the U.S. Government regarding the use of this technical data. Contractors should direct any questions to Vickie Inlow and adhere to the instructions provided for controlling export-controlled technical data.