H. No. 6963 / 53 OG No. 18, 6044 (September 30, 1957
"SEC. 3. This temporary permit shall continue to be in force during the time that the Government has not established similar service at the places selected by the grantee, and is granted upon the express condition that the same shall be void unless the construction of said station be begun within one year from the date of approval of this Act and be completed within four years from said date."SEC. 2. This Act shall take effect upon its approval.