A joint resolution proposing an amendment to the Constitution of the United States prohibiting the use of U.S. mails for the transmission of communications hostile to the Constitution, laws, and form of government of the United States or any State.

Constitutional Amendment - Provides that the United States mails shall not be available or used for the transmission, carriage, or delivery of communications hostile to or subversive of this Constitution and the laws and form of government of the United States or of any State.

Provides that the Congress shall have power, by appropriate legislation, to determine and define the categories of communications the mailing of which is prohibited by this article and shall have power, by appropriate legislation, otherwise to enforce this article.