Deposit of the work in a designated repository has been required since the first US copyright act, in 1790.
Copyright is a federal law; the Copyright Office is part of the Library of Congress, which is overseen by Congress.
The U.S. Copyright Office is part of (and physically located within) the Library of Congress, and the Librarian of Congress designates the Register of Copyrights.
The Copyright Office is part of the Library of Congress; the Librarian of Congress appoints the Register of Copyrights.
The US Copyright Office keeps them at the Library of Congress in Washington DC.
Copyright laws are administered by federal governments. In the US, for example, Congress oversees the Library of Congress, of which the Copyright Office is a division.Authorizing the use of copyright-protected materials falls to the rightsholder or his or her appointed administrator.
Congress has the power to issue copyrights and patents. Patents and Trademarks are handled by the Patent and Trademark Office, which is part of the Department of Commerce. The Copyright Office is part of the Library of Congress.
The US Copyright Office is within the Library of Congress, which serves as its deposit library.
copyright clause
The Constitution does not specify: it just says "Congress." Copyright protection is now automatic, but formal registrations are still handled by the Copyright Office, which is part of the Library of Congress.
The only way to register for a copyright in the US is through the Copyright Office within the Library of Congress. See the link below for information and forms.
In the US there are two separate agencies for copyright and trademark administration. The US Copyright Office oversees the registration of copyright and archives the information with the Library of Congress. The Patent and Trademark Office is in charge of administering trademark applications and renewals, maintains the Trademark Electroniic Search System (TESS) and handles patent applications and awards.
Generally, no. However, Congress occasionally changes the law to give back copyright to lapsed works. Detailed information on laws, procedures, etc. and forms for copyright are on the Copyright Office website.