Originally posted by Bob from Aus Each country has its own copyright laws. It can affect what you can photograph and how your material can be used. Assume that every country has different laws. Can anyone answer if each State in the US has different copyright laws or if there is one set of laws for the entire USA?
As to your question, the US Constitution specifies the copyright, therefore the federal government law prevails over all the states, for the sake of uniformity. Article I, Section 8, Clause 8 of the United States Constitution, is known as the Copyright Clause, empowers the United States Congress:
Quote: To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.