or instrumentality of the United States Government may provide goods or services to another department, agency, or instrumentality. (c) The head of any relevant department or agency funded in this Act utilizing any transfer authority shall submit to the Committees on Appropriations of both Houses of Congress a semiannual report detailing the transfer authorities, except for any authority whereby a department, agency, or instrumentality of the United States Government may provide goods or services to another department, agency, or instrumentality, used in the previous 6 months and in the year-to-date. This report shall include the amounts transferred and the purposes for which they were transferred, and shall not replace or modify existing notification requirements for each authority. 603. (a) None of the funds made available in this Act may be used to maintain or establish a computer network unless such network blocks the viewing, downloading, and exchanging of pornography. (b) Nothing in subsection (a) shall limit the use of funds necessary for any Federal, State, Tribal, or local law enforcement agency or any other entity carrying out criminal investigations, prosecution, or adjudication activities. 604. (a) No federal monies shall be expended in furtherance of any agreement among private entities for consolidated interim storage of spent nuclear fuel that is not specifically authorized under federal law until such time that host state and local governments and any affected Indian tribes have formalized their consent. (b) Provided that the prohibition provided for in this section shall not apply to facilities presently storing commercial spent nuclear fuel, pursuant to an NRC license, as of the date of enactment of this Act. (c) For purposes of this section, spent nuclear fuel shall have the same meaning as provided in section 2 of the Nuclear Waste Policy Act of 1982. 605. None of the funds made available by this Act may be used to carry out any program, project, or activity that promotes or advances Critical