Birth certificates in the United States
In the U.S., the keeping of vital statistics is a state function, because it is not a power assigned by the Constitution to the federal government (under the Tenth Amendment, all powers not given to the federal government are reserved to the states and the people), and yet the federal government is extremely dependent upon this state function it lacks direct jurisdiction over, because the Fourteenth Amendment expressly grounds American citizenship upon birth in the United States (a jus soli system of citizenship).
Therefore, the federal and state governments have traditionally cooperated, to some extent, to improve vital statistics. From 1900 to 1946 the U.S. Census Bureau designed standard birth certificates, collected vital statistics on a national basis, and generally sought to improve the accuracy of vital statistics. In 1946 that responsibility was passed to the U.S. Public Health Service. Unlike the British system of recording all births in "registers", the states file an individual document for each and every birth. In most states, this document was, and still is, entitled a "Certificate of Live Birth".[4][5]
In the U.S., the U.S. National Center for Health Statistics creates standard forms that are recommended for use by the individual states to document births. However, states are free to create their own forms.[6] These "forms" are completed by the attendant at birth or a hospital administrator, which are then forwarded to a local or state registrar, who stores the record and issues certified copies when requested [1].