This is a combined synopsis/solicitation for a one-year preventive maintenance and service contract for a Zeiss 810 Ultra nano-Computed Tomography (CT) system and its software, with an option for an additional year. The Government intends to solicit and award to only one source, Carl Zeiss Microscopy, LLC, stating that no other supplies or services will satisfy the requirements. All services must be performed at the U.S. Army Research Laboratory at Aberdeen Proving Ground, Maryland. No budget or specific dollar amounts are detailed in this description. The full requirements are contained in an attached Performance Work Statement.