The educational system of Thailand is described, and guidelines concerning students who wish to study in U.S. institutions are provided. After a description of the organizational structure of Thai education and national education policy, attention is directed to elementary and secondary education, vocational and technical education, teacher training, nursing and medical education, and higher education. Specific considerations include: secondary school grading and leaving examinations, secondary level vocational and technical institutes/colleges, teacher colleges, teacher preparation for different educational levels, nursing and medical education, postsecondary diplomas and degrees, public colleges, private colleges, military education, and Buddhist universities. Descriptions of 14 public colleges, 10 private colleges, 5 military academies, and 2 Buddhist universities are provided. Guidelines for U.S. admissions officials cover topics such as counseling, accreditation, attrition, grades, transcripts. Placement recommendations cover each educational level. Appendices include: a list of Thai higher education institutions according to control, type, and source of support; and sample institutional documents, including certificates and transcripts. (SW)