The United Nations (UN) does not have a specific age limit for employment or for participation in its programs and initiatives. The UN is committed to promoting diversity and inclusiveness in its workforce and values the experience and expertise of individuals of all ages.

However, it is important to note that some positions within the UN may have age restrictions based on specific job requirements or the retirement age of the UN staff. For example, staff members in some positions may be required to retire at the age of 62, while others may be able to continue working until the age of 65.

Additionally, certain UN programs and initiatives may have age restrictions based on their specific goals and objectives. For example, the UN Volunteer program has a minimum age requirement of 25 years old, while the Youth Delegate program is specifically designed for young people aged 18 to 29.

In summary, while the UN does not have a specific age limit for employment or participation in its programs and initiatives, some positions or programs may have age restrictions based on their specific requirements or objectives.