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In 1902 two acts contributed significantly to the emergence of the Hygienic Laboratory as a center for research within the federal government. The first reorganized the MHS and renamed it the Public Health and Marine Hospital Service (PH-MHS), moving it toward its status as the chief U.S. public health agency. More importantly for the Hygienic Laboratory, the act launched a formal program of research by designating the pathological and bacteriological work as the Division of Pathology and Bacteriology and by creating three new components that represented the most fruitful areas for research at that time: the Divisions of Chemistry, Pharmacology, and Zoology. The importance of these new programs was underscored by the provision that the PH-MHS could hire scientist researchers with Ph.D.'s to head them. Up until this time, the professional staff had been limited to physicians.