Lyndon Johnson: “I am glad to approve this legislation which is to be known as the Clean Air Act.”

This program, sponsored by the World Meteorological Organization, constitutes one of the largest and most complex scientific and technological undertakings ever attempted as an international effort.

In that pursuit, Mr. President, United States support will be gladly given.

Now, Therefore, I, Lyndon B. Johnson, President of the United States of America, do proclaim that the following described land reserved by the Act of September 1, 1959, be designated as the Franklin Delano Roosevelt Memorial Park area of…

In Witness Whereof, I have hereunto set my hand this twentieth day of January in the year of our Lord nineteen hundred and sixty-nine and of the Independence of the United States of America the one hundred and ninety-third.