Haven't been able to get much but it looks that the the tax proceeds recovered for the use of the local road network will be paid back to the territorial authorities managing taxable roads minus extraordinary management costs (close to 25%)  cheating them and refusing them the tax management. The Native Nation Breizh is leading the fight towards fiscal autonomy and wants to be able to manage the proceeds but wants to be able as well to decide who pays the tax and who doesn't explaining that a significant part of local taxes paid by local companies are already funding the local roads maintenance and transport infrastructures  which create a competitive distortion to the disadvantage of local companies and farmers. It looks that the transport infrastructures and roads maintenance costs included in the local taxes are not identified as such making complicated  a discount. The Breizh Nation wants to be able to manage the tax to be able to deliver free cards to the companies and farmers that have been so far the only net contributors to fund the creation of infrastructures, roads and their maintenance.

He wasn't very precise but among the shareholders of the company that should benefit from extraordinary management costs, there is the SNCF which should benefit to help fund the aging railway network.... 

That's all I got.