ISO/IEC 7501-3:2005是国际民用航空组织（ICAO）文件Doc 9303第3部分——1号和2号机读公务旅行证件的简写背书。国际民航组织文件9303第3部分规定了ID-1和ID-2卡格式的官方旅行证件目视检查和机器阅读的通用格式和最低数据元素，其中包含标准化的、全球可互操作的机器可读光学字符识别（OCR）数据，可由政府选择，被接受代替1946年国际民用航空公约（修订版）附件9（第3章第3.4段）中定义的护照。 国际民用航空组织（ICAO）文件的版本；i、 e.Doc 9303第3部分——1号和2号机读公务旅行证件，第三节和第四节，技术规范，作为ISO/IEC 7501-3:1997，现已过时，正在修订中。一旦TAG/MRTD最终确定新版Doc 9303第3部分——1号和2号机读公务旅行证件，ISO/IEC JTC 1将考虑作为新的ISO/IEC 7501-3第三版进行背书。

ISO/IEC 7501-3:2005 is a short form endorsement of the International Civil Aviation Organization (ICAO) Document Doc 9303 Part 3 - Size-1 and Size-2 Machine Readable Official Travel Documents. ICAO Doc 9303 Part 3 specifies generic formats and minimum data elements for visual inspection and machine reading of official travel documents in the ID-1 and ID-2 card formats containing standardized, globally interoperable machine readable optical character recognition (OCR) data, which may at the option of Governments, be accepted in lieu of a passport as defined in Annex 9 (Chapter 3, paragraph 3.4) to the Convention on International Civil Aviation year 1946 (as revised). The edition of the International Civil Aviation Organization (ICAO) Document; i.e. Doc 9303 Part 3 - Size-1 and Size-2 Machine Readable Official Travel Documents, Sections III and IV, Technical Specifications, which was adopted as ISO/IEC 7501-3:1997 is now out of date and in the process of being revised. Once the new edition of Doc 9303 Part 3 - Size-1 and Size-2 Machine Readable Official Travel Documents is finalized by the TAG/MRTD, ISO/IEC JTC 1 will undertake its consideration for endorsement as a new third edition of ISO/IEC 7501-3.