It would also prohibit transmission of any fax messages at all if a prospective recipient provided a sender with written notice - a facsimile, of course, would be acceptable -that the messages were not wanted.

Cable television is not covered by the 1976 F.C.C. standard; it is governed by the Cable Policy Act of 1984, which prohibits obscene or otherwise unlawful transmission.

Would crack down on "junk fax" by prohibiting transmission of any advertisement over five pages by facsimile machine and by restricting transmission of shorter advertisements to nonbusiness hours.

Malawi prohibits the publication or transmission of anything "that could be useful to the enemy," as well as religiously offensive and obscene material.

The result, as Justice John Paul Stevens noted in dissent, is that "a law that criminalizes a particular communication in just a handful of destinations effectively prohibits transmission of that message to all of the 176.5 million Americans [who] have access to the Internet."

The United States Court of Appeals for the Fifth Circuit rule in November 2002 that Federal Wire Act prohibits electronic transmission of information for sports betting across telecommunications lines but affirmed a lower court ruling that the Wire Act "'in plain language' does not prohibit Internet gambling on a game of chance."

"There is a haze of uncertainty over all of this," said Stephen I. Vladeck, an American University law professor who has written about the Espionage Act, a 1917 law that prohibits the unauthorized retention or transmission of defense-related documents.

The Senate's bill prohibits transmission of pornography over the Internet and on-line information services, and it imposes fines of up to $100,000 and prison terms on people convicted of making "indecent" material available to minors.

The Information Technology Act 2000 regulates cyber activities in India and prohibits publication or transmission of information that can corrupt people.

They said a Nevada state grand jury was hearing accusations that Mr. Walters, in doing business with illegal bookmakers outside Nevada, had violated laws that prohibit interstate transmission of wagering information and laundered money from mob-run bookmaking operations.