AAR-related information is contained in materials published by which organization?

• A. International Rail Association
• B. North American Rail Union
• C. Federal Transport Council
• D. Association of American Railways

Answer: (D)

The question tests recognition of which organization provides materials containing AAR-related information. The Association of American Railways is the primary industry group that publishes AAR materials, including standards, guidelines, and reference documents used by railroads and suppliers. Its publications cover the kinds of rules and practices commonly labeled as AAR information, making it the authoritative source. The other organizations listed do not publish AAR materials, so they aren’t the source for this information.