The Department of Defense, specifically the Naval Air Warfare Center Training Systems Division (NAWC TSD), has issued a Special Notice regarding the Internal Contractor Support Services (iCSS) initiative. This notice serves to inform industry stakeholders that future communications will be posted under the updated Notice ID N6134025R0004, transitioning from the previous ID N6134024R0037. The iCSS effort is crucial for providing engineering and technical support services, which are essential for the operational readiness and effectiveness of naval training systems. For further inquiries, interested parties can contact Michael Yucht at Michael.D.Yucht.civ@us.navy.mil or by phone at 407-380-4894, or reach out to Caitlyn Ersek at caitlyn.e.ersek.civ@us.navy.mil or 407-380-8050. No responses are required for this Special Notice.