 In addition, although most of the world's nations had ratified the 1906 Berlin Convention, the United States had not, and it was informed that because of this the U.S. would not be invited to the second International Radiotelegraph Convention scheduled to be held in London in June 1912.In response, on April 3, 1912 the U.S. Senate ratified the 1906 Convention.This followed by legislation implementing the convention's provisions by the passage of the Radio Act of 1912, which was signed by President Howard Taft on August 13, 1912, and went into effect December 13, 1912.