For more than a decade, Florida has allowed owners of hybrid, electric and other low-emission vehicles to ride in high-occupancy-vehicle lanes with only one person in the car between 7 a.m. and 9 a.m. and 4 p.m. to 6 p.m. on weekdays. And with the introduction of the I-95 express lanes, they don’t have to pay tolls. But a federal law say it’s time for those exemptions to end. By September 2017, U.S. law requires states like Florida to take another look at the special treatment these owners receive.