Doc 9303第七版代表了国际民航组织机器可读旅行规范的重组 文件。在没有对规范进行实质性修改的情况下，新版Doc 9303已重新格式化为一号机读公务旅行证件（TD1）、二号机读公务旅行证件（TD2）和三号机读旅行证件（TD3）以及签证的一套规范。这套规范由各种单独的文件组成，其中包括通用规范（适用于所有MRTD）和MRTD形状系数特定规范。第9303号文件第9部分以第二卷第二节第1部分第6版第9303号文件（2006年）以及第二卷第3部分第3版第9309号文件（2008年）为基础。除了Doc 9303第3、4、5、6和7部分中规定的基本MRTD规范外，第9部分还规定了一些规范，供希望签发电子机器可读旅行证件（eMRTD）的国家使用，这些证件能够被任何配备适当的接收国用来读取和验证与eMRTD本身有关的数据，以及 核实其持有人。这包括强制性的全球互操作生物特征数据，可作为面部识别系统的输入，也可作为指纹或虹膜识别系统的输入。规格要求 全球可互操作的生物特征数据以高分辨率图像的形式存储在大容量非接触式集成电路（IC）上，该IC还使用MRZ数据的副本进行编码。这些规范还允许由发布国自行决定存储一系列可选数据。由于非接触式IC的使用与文件的大小无关，因此所有规范均适用于电子启用形式的所有eMRTD大小。eMRTD格式之间的差异与MRZ有关，并对非接触式IC中的MRZ存储产生影响。这些差异在文件9303-10中的逻辑数据结构规范中有所说明。

The Seventh Edition of Doc 9303 represents a restructuring of the ICAO specifications for Machine Readable Travel Documents. Without incorporating substantial modifications to the specifications, in this new edition Doc 9303 has been reformatted into a set of specifications for Size 1 Machine Readable Official Travel Documents (TD1), Size 2 Machine Readable Official Travel Documents (TD2), and Size 3 Machine Readable Travel Documents (TD3), as well as visas.This set of specifications consists of various separate documents in which general (applicable to all MRTDs) as well as MRTD form factor specific specifications are grouped.This Part 9 of Doc 9303 is based on the Sixth Edition of Doc 9303, Part 1, Volume 2, Section II (2006), as well as the Third Edition of Doc 9309 Part 3, Volume 2 (2008).Part 9 defines the specifications, additional to those for the basic MRTD set forth in Parts 3, 4, 5, 6, and 7 of Doc 9303, to be used by States wishing to issue an electronic Machine Readable Travel Document (eMRTD) capable of being used by any suitably equipped receiving State to read and to authenticate data relating to the eMRTD itself and verification of its holder. This includes mandatory globally interoperable biometric data that can be used as an input to facial recognition systems, and, optionally, to fingerprint or iris recognition systems. The specifications require the globally interoperable biometric data to be stored in the form of high-resolution images on a high-capacity contactless integrated circuit (IC), the IC also being encoded with a duplicate of the MRZ data. The specifications also permit the storage of a range of optional data at the discretion of the issuing State. Since the use of the contactless IC is independent of the size of the document, all specifications apply to all eMRTD sizes in their electronically enabled form. Differences between eMRTD formats relate to the MRZ, with consequences for the storage of the MRZ in the contactless IC. These differences are indicated in the specifications of the Logical Data Structure in Doc 9303-10.