22 CFR § 305.2
Eligibility
November 19, 2020
In order to be eligible for enrollment as a Volunteer, Applicants must meet mandatory citizenship and age requirements.
(a) Citizenship. The Applicant must be a citizen or national of the United States prior to entering on duty as a Trainee.
(b) Age. The Applicant must be at least 18 years old at the time of entry on duty as a Trainee.