Today's vote by the Public Utility Commission comes four months after the original vote to fine San Francisco-based Uber for operating in Pennsylvania for six months in 2014 without the required approval.
Commissioners had criticised Uber for continuing to operate for a month, even after being issued a cease-and-desist order and for what were described as obstructive actions during the agency's investigation.
Uber appealed the original fine, while Democratic Gov Tom Wolf and top state lawmakers had urged the commission to reduce it.
A pair of administrative law judges last year recommended a USD 50 million fine.
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