How does federal law define a juvenile?

Federal law defines a juvenile as anyone who has not yet reached their 18th birthday. This definition is consistent across various statutes and legal contexts, particularly in relation to criminal justice and juvenile justice systems. The age of 18 is significant as it marks the transition to adulthood in the eyes of the law, at which point individuals are generally treated as adults for legal purposes, including criminal responsibility, voting rights, and contractual agreements.

This definition plays a crucial role in how juveniles are treated differently from adults in the legal system, emphasizing rehabilitation over punishment. It is important to note that some states may have their own definitions for certain specific laws, but at the federal level, the threshold is the age of 18. Understanding this aspect of federal law is essential for evaluating cases involving minors and considering the implications of juvenile versus adult legal proceedings.