age qualifications
NPS applicants are eligible for enlistment if they are:
(2) 17 years of age, have not reached the 18th birthday, and DD Form 1966/4, section VII (Record of Military Processing Armed Forces of the United States) has been properly completed.
(1) 18 years of age and less than 42 years of age. NPS personnel enlisting under this policy must ship onto IADT on or before their 42nd birthday.

(f) If an applicant has been made a ward of the court under state or Federal law, or has been placed in the control and custody of other than natural parents, then the agency or the court appointed custodial agency must sign for the applicant's processing and enlistment.

(g) Applicants who have been emancipated either by court order or who have neither parents nor guardians, may be processed for enlistment.

PS applicants are eligible for enlistment if they are:
(1) 18 years of age and less than 42 years of age.
(2) 42 years of age or older must have at least 1 year of prior qualifying service plus the number of years the applicant is over 42. See AR 135-180, chapter 2, for qualifying service.

WAIVERS: Waiver authority may not waive more than 1 year of qualifying service. Example: PS applicant is 47 years old with 5 years of qualifying service.  In this case the applicant would be eligible for an "age and service" waiver of 1 years of qualifying service. Check with a recruiter for exceptions to policy.