In the Assembly Weber worked for the passage of laws establishing the Wisconsin Industrial Commission (with Charles H. Crownhart and John R. Commons he wrote the industrial commission law in 1911), workmen's compensation, the state system of technical education, and other statutes favorable to the interests of the working class.
In 2006, Rosenzweig was appointed to the board of the Wisconsin Technical College System.
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Wisconsin Technical College Conference, an athletic conference for the Wisconsin Technical College System