Have all required documentation to include- birth certificate, social security card, high school/college transcripts, medical records for existing conditions, parental consent for 17 yr old applicants, picture i.d. Come into office with questions in hand and be organized. Treat the same as any job interview please. Be prepared to take a practice version of ASVAB (Armed Service Vocation Aptitude Battery). Bring court docs for parents that are divorced and remarried showing name changes. Bring court docs for any criminal records and ensure fines are already paid. You can't join with outstanding fines or open court dates or any felonies.