Owners and drivers of cargo trucks and busses with EBPO, VI and EEV emission standards running only on natural gas or bio ethanol will be refunded half of their road toll taxes. The users can get acquainted with the refund procedure on the web site of the Road Infrastructure Agency www.api.bg in BgToll-Procedures section. The sums will be refunded regardless of what type of toll option is used- route map, on-board device or GPS tracker. Applications for refund are submitted in the first ten days of the month at the district offices. People with an e-signature can apply online at info@bgtoll.bg. The refund period is thirty days from the date the application is submitted.