ISO 17267:2009规定了导航系统的应用编程接口(API)。它指定了可以从地图数据库中检索的数据，并定义了用于访问的接口。该国际标准规定了一组函数调用。它还指定了API的设计，并给出了其预期用途的示例。此外，它给出了确定数据访问库是否符合该国际标准的标准。 ISO 17267:2009适用于以下功能类别的导航应用: 定位； 路线规划； 路线指引； 地图显示； 地址位置； 服务和兴趣点（POI）信息访问。

ISO 17267:2009 specifies an application programming interface (API) for navigation systems. It specifies the data that may be retrieved from the map database and defines the interface for access. This International Standard specifies a set of function calls. It also specifies the design of the API and gives examples of its intended use. Furthermore, it gives the criteria to determine whether a data access library is in accordance with this International Standard. ISO 17267:2009 is applicable to the following functional categories of navigation applications:

• positioning;
• route planning;
• route guidance;
• map display;
• address location;
• services and point of interest (POI) information access.