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				France's Thevenoud law, introduced in October 2014, requires 
				chauffeured cars to return to a base between fares, restricts 
				their use of software to find customers in the street and banned 
				unlicensed services, among other measures.
 California-based Uber, which has run into fierce opposition from 
				established taxi services since it launched in Europe five years 
				ago, has filed a complaint with the European Commission against 
				the French law, arguing it favored regular taxis over Uber's 
				internet-managed ride-sharing service and that France should 
				have notified Brussels of the new measure.
 
 The Commission is preparing to issue a so-called letter of 
				formal notice, the people said, which represents the first stage 
				of an infringement procedure where Brussels suspects that a 
				national measure breaches the EU treaties.
 
 Uber allows would-be passengers to summon rides via a smartphone 
				app and has seen exponential growth in Europe as well as 
				numerous court challenges which have resulted in the banning of 
				its unlicensed taxi service, UberPOP.
 
 Ultimately the Commission could take France to court if the two 
				do not come to an agreement.
 
 The challenge could come in late May, the people said, although 
				no final decision has been taken yet.
 
 A spokesman for the Commission said it was looking at how it 
				could "encourage the development of new and innovative services 
				and the temporary use of assets, without favoring one business 
				model over another."
 
 "In mid-2016 we will provide guidance on how existing EU law 
				applies to the collaborative economy," Jakub Adamowicz said.
 
 Last month a French court ruled that banning chauffeured cars' 
				use of geolocational technology to help passengers find 
				available cars was illegal and said France should have notified 
				the measure to Brussels.
 
 The Commission is adjusting its challenge to take the French 
				ruling into account, the people said, which goes some way 
				towards alleviating its concerns with the law.
 
 However other substantive problems with the law remain, 
				including the requirement that chauffeured cars return to a base 
				between fares.
 
 (Reporting by Julia Fioretti; editing by Philip Blenkinsop, Greg 
				Mahlich)
 
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