This SAE Aerospace Information Report (AIR) provides a record of the development by SAE AGE-2A Air Cargo Sub-Committee of Aerospace Standard AS36100, Air Cargo Unit Load Devices - Performance Requirements and Test Parameters, published 2005-02, intended as a technical reference for airworthiness approval of air cargo unit load devices (pallets, nets and containers) to be loaded with either baggage or freight on board civil transport aircraft, and to partly supersede previously used NAS 3610, Cargo unit load devices - Specification for - [Revision 10, 1990, referenced in TSO C90c]. With AS36100 intended to become the core reference for approval of unit load devices for many years, it is necessary to avoid the severe difficulties encountered by either manufacturers or approval Authorities with predecessor reference document NAS 3610 due to the absence of any remaining information on the original thinking justifying any of the configurations. In order to make this information available to future users of AS36100 and reduce, inasmuch as possible, any interpretation difficulties arising, this AIR constitutes a formal record of Panel meetings and work documents that defined it, together with an index system allowing to trace back any given technical statement or requirement to its original sources.