Secondary or postsecondary education programs available in regular or trade high schools or through separate vocational centers or programs that provide formal preparation for semiskilled, skilled, technical or professional occupations for high-school-aged students and, in some cases, adults who have opted to develop or expand their employment opportunities, often in lieu of preparing for college entry. Vocational education programs help participants prepare for full-time employment upon graduation, part-time employment while in school or for more advanced vocational training at the postsecondary level. (AIRS HH-9000)