The left wing of the Jewish Committee on Law and Standards, which is in turn a part of the American sect called Conservative Judaism, comes close.
http://en.wikipedia.org/wiki/Conservative_Halakha#Difference_in_methodology_from_Orthodoxy
http://en.wikipedia.org/wiki/Committee_on_Jewish_Law_and_Standards#Process
The left wing of the Jewish Committee on Law and Standards, which is in turn a part of the American sect called Conservative Judaism, comes close.
http://en.wikipedia.org/wiki/Conservative_Halakha#Difference_in_methodology_from_Orthodoxy
http://en.wikipedia.org/wiki/Committee_on_Jewish_Law_and_Standards#Process