Chief Author of the 1933 act, which created the Tennessee Valley Authority 

The Tennessee Valley Authority was to supervise the multipurpose development of the Tennessee River. Senator George Norris of Nebraska proposed the plan that the river be dammed to prevent flooding, produce electricity, and rebuild the eroded farmland. Coincidently, the first dam built by the TVA was called Norris Dam, and his name was given to the model community developed nearby.

Responsible for the Lame Duck amendment 

The Lame Duck Amendment (20th Amendment) shifted the date of presidential inaugurations from March to January, eliminating the holdover session of the outgoing Congress formerly held between the election and the presidential inauguration.

Author of the Norris-La Guardia Anti-Injuction Act of 1932 

The Norris-La Guardia Anti-Injuction Act curbed the use of injunctions in labor disputes, barred the enforcement of "yellow-dog" (anti-union) contracts, and asserted the right of labor to organize and bargain collectively.

Nebraska Unicameral Legislature.

Senator George Norris felt the bicameral legislation, which was modeled after the British Parliament, was unnecessary due to the fact that American government was built upon the idea there was but one class.

"...The constitutions of our various states are built upon the idea that there is but one class. If this be true, there is no sense or reason in having the same thing done twice, especially if it is to be done by two bodies of men elected in the same way and having the same jurisdiction." -George Norris-

Senator George Norris' impact assembled enough voters for an overwhelming decision to make Nebraska the only one-house legislature in the country.  The final vote was 286,086 for and 193,152 against a unicameral system.