The California Public Utilities Commission approved ridesharing companies early this year, but it offered only a few temporary guidelines while it worked on a formal rule set. Today, the regulator has published those definitive rules. Companies like Lyft, SideCar and Uber now have to get a CPUC license to operate under a new Transportation Network Company category. To maintain that license, they'll have to run background checks, train drivers, hold a minimum level of insurance, inspect cars and drop empl
