In 1963 the Bureau of State Services was reorganized into the Bureau of State Services--Community Health and the Bureau of State Services--Environmental Health.Works by these bodies are found under the following headings according to the name used at the time of publication.United States. Public Health Service. Bureau of State Services.United States. Public Health Service. Bureau of State Services--Community Health.United States. Public Health Service. Bureau of State Services--Environmental Health.SUBJECT ENTRY: Works about these bodies are entered under one or more of the names resulting from the separation. Works limited in coverage to the pre-separation period are entered under the name of the original body.