指定和描述跨部门机构之间数据交换所需的数据元素。还标识用于跨行事务的消息及其数据元素。用于通过预先打印的表格（以指定的数据元素名称作为标题）和自动交换过程传递的信息。

Specifies and describes the data elements required in the interchange of data between interlending institutions. Identifies also messages and their data elements which are used in interloan transactions. Is intended for messages communicated both by preprinted forms having the specified data element names as headings and by automated interchange processes.