The United States Army Junior Reserve Officers' Training Corps (JROTC) came into being with the passage of the National Defense Act of 1916. Under the provisions of the Act, high schools were authorized the loan of federal military equipment and the assignment of active duty military personnel as instructors. In 1964, the Vitalization Act opened JROTC up to the other services and replaced most of the active duty instructors with retired members of the armed forces, who worked for and are cost shared by the schools.