On January 6, 1916, Representative Shackleford of Missouri, chairman of the committee on roads, introduced the bill which later became a law. The bill ran the usual course and created a great deal of interest and was freely debated in both House and Senate. The discussion on it comprises more than 300 pages of the Congressional Record[156] and cover practically every reason for and objection to the betterment of highways and the use thereon of national money. The bill finally passed the house January 25, 1916, by a vote of 283 Yeas, 81 Nays and 70 not voting; and the Senate as amended, May 8, 1916, by a unanimous vote. The bill went to conference, the Senate agreed to the conference report June 27, and the House June 28, 1916. President Wilson approved the bill July 11, 1916, and it became Public Law, No. 156, 64th Congress. The title of the bill as amended is “An Act to provide that the United States shall aid the States in the Construction of rural post roads, and for other purposes.” In brief it authorizes the Secretary of Agriculture to coöperate with the states through their respective highway departments in the construction of rural post roads. In order to keep state sovereignty intact no money apportioned under the act could be expended in any state until the legislature of that state shall have assented to the provisions of the Act. The Secretary of Agriculture and the State Highway department agree upon the roads to be constructed therein and the character and method of construction. By providing that all roads constructed under the provisions of the act shall be free from tolls of all kinds Congress avoided the objection raised by President Monroe in his veto of the National Road bill in 1822. A most liberal definition of Post Roads is also given in the bill, namely, “the term ‘rural post road’ shall be construed to mean any public road over which the United States mails now are or may hereafter be transported, excluding every street and road in a place having a population, as shown by the latest available federal census, of two thousand five hundred or more, except that portion of any such street or road along which the houses average more than two hundred feet apart.”