The ASCP Board of Registry (BOR) was established in 1928 as the "Registration Bureau for Technicians" as the first certification agency for clinical laboratory personnel in the US. In 1933, ASCP began to assess individuals for academic and clinical prerequisites, and those who passed a board examination were granted certification. The initial certifications included a written and practical component. In 1939, the BOR publishes the first book outlining the educational curriculum for medical technologists entitled
Curriculum for Schools of Medical Technology. In 1948, the written essay portion of the certification was deemed too cumbersome to assess, and the certification was switched to a
multiple choice and true-false assessment that could be graded on a machine and provide exam statistics. In 1994, BOR changed their examination format to
Computerized adaptive testing (CAT). The lawsuit, and the focus on pathologists over medical technologists spurred other medical technologist societies, such as the
American Society for Medical Technology (ASMT) to promote the creation of their own certifying boards. The BOR bylaws were updated following the transition from the American Society of Clinical Pathologists to American Society for Clinical Pathology. ==Board of Schools (BOS)==