What is a requirement for an Amber Alert to be issued?

The requirement for an Amber Alert to be issued emphasizes the necessity for sufficient descriptive information about the child involved in the suspected abduction. This information typically includes crucial details such as the child's name, physical description, and any information about the circumstances of their disappearance as well as possible suspects or vehicles involved. The urgency of the alert mechanism relies on the ability of the community to assist law enforcement in locating the child quickly; without accurate and sufficient descriptions, the effectiveness of the alert is significantly diminished.

The other choices do not align with the criteria established for Amber Alerts. For instance, children involved in Amber Alerts are typically under 18 years old, and they do not need to be missing for a specific duration before an alert is issued—prompt action is a key element of the process.