9303号文件的第七版代表了国际民航组织机器可读旅行证件规范的重组。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（TD 1）、二号机读公务旅行证件（TD 2）和三号机读旅行证件（TD 3）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5.1节“文件9303组成”提供了概述。第1部分介绍了Doc 9303规范。它描述了文件9303的12个部分的组成，提供了国际民航组织的一般信息，以及规范中使用的术语和缩写的指导。这些规范无意成为国家身份证件的标准。 但是，身份证件被其他国家承认为有效旅行证件的国家，其身份证件的设计应符合Doc 9303-3和Doc 9303-4、Doc 9303-5或Doc 9303-6的规定。虽然Doc 9303-4中的规范旨在用于护照的特殊应用，但这些规范 同样适用于其他TD3尺寸的身份证件，例如，通行证、海员身份证件 以及难民旅行证件。

The Seventh Edition of Document 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 (TD 1), Size 2 Machine Readable Official Travel Documents (TD 2), and Size 3 Machine Readable Travel Documents (TD 3), 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.Section 5.1 "Doc 9303 Composition" provides an overview.Part 1 introduces the Doc 9303 specifications. It describes the build-up of the twelve parts of Doc 9303, provides general information on ICAO, and guidance on the terminology and abbreviations used throughout the specifications.These specifications are not intended to be a standard for national identity documents. However, a State whose identity documents are recognized by other States as valid travel documents shall design its identity documents such that they conform to the specifications of Doc 9303-3 and Doc 9303-4, Doc 9303-5 or Doc 9303-6.Although the specifications in Doc 9303-4 are intended for particular application to the passport, these specifications apply equally to other TD3 size identity documents, for example, the laissez-passer, the seafarer's identity document and refugee travel documents.