1. 8510. The Air Transport Association of America (ATA) Specification No. 100 (1) establishes a standard for the presentation of technical data in maintenance manuals. (2) divides the aircraft into numbered systems and subsys tems in order to simplify locating maintenance instructions. Regarding the above statements, A. both No. 1 and No. 2 are true B. neither No. 1 nor No. 2 is true. C. only No. 1 is true.