A work of the United States government, as defined by the United States copyright law, is "a work prepared by an officer or employee" of the federal government "as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.This act only applies to U.S. domestic copyright as that is the extent of U.S. federal law. The U.S.