Youth service refers to non-military, intensive engagement of young people in organized activity that contributes to the local, national, or world community. Youth service is widely recognized and valued by society, with minimal or no compensation to the server. Youth service also provides opportunities for reflection (e.g. an organization where young people are recruited, offered leadership opportunities, participate in activities that improve the community, and are trained and mentored).
The general definition of community service does not vary; however, the understanding of what youth is varies by country. The most common age group defined as ‘youth’ is 15-30 years of age. The United Nations defines youth as 15-24 years of age. The variation of whether or not youth service is "long range" depends on the setting. Some communities regard long-range youth service as being from six months to two years of service; however, this time range can vary with each country’s national youth service policy.