The Vitalized Transitional Program for Bilingual School Students at George Washington High School in New York City provides instruction in English as a second language, native language arts, and bilingual courses (mathematics, science, social studies, and vocational courses) for Spanish-speaking high school students of limited English proficiency. The aim of the program is to assist students in making the transition to all-English instruction and in completing graduation requirements. This report on the program as it was implemented in 1980-81 describes the program setting; student characteristics; program organization; student placement; instructional services; non-instructional activities (curriculum development, staff development, supportive services, and community involvement); program implementation; and program evaluation. Evaluation indicates that: (1) participants mastered English syntax objectives in accordance with program goals; (2) achievement in mathematics, science, and social studies courses varied; (3) achievement levels in native language and vocational courses were generally above the criterion level; (4) program attendance was significantly better than school-wide attendance; and (5) several program participants received academic honors and scholarships. Recommendations for program improvement are presented. (Author/MJL)