H. No. 1298 / 50 OG No. 7, 2981 (July, 1954)
"SEC. 7. This Act shall take effect upon its approval, but, unless otherwise expressly extended by Congress, the increased rates of tax provided for in this Act shall continue in force and effect until December thirty-one, nineteen hundred and fifty-five."SEC. 2. This Act shall take effect upon its approval.