To minimize impaired driving during the holiday, the Office of Highway Safety will be offering $20 vouchers for Lyft and Uber. Officials say those vouchers will be available from 12 p.m. to 6 p.m. on Saturday, July 4 at MySoberRides.com. Those vouchers can be used between 12 p.m. on July 4 and 3 a.m. on July 5.