本标准定义了与特定于节目的广告插入相关的功能。特定于节目的广告插入是基于SCTE 35提示消息中传递的节目标识符，将一个点安排并插入到数字广播节目中。

This standard defines the functionality associated with Program-Specific Ad Insertion. Program-Specific Ad Insertion is the scheduling and insertion of a spot into a digital broadcast program based on the program identifier passed in the SCTE 35 cue message.