By Michael Cabanatuan at SF Gate

February 9, 2016

Having two people in your car, or a low-emissions decal, won’t be enough to get you into the new carpool lane on Interstate 580.

By the end of the month, when the I-580 Express Lanes are expected to open, carpoolers who want to keep getting a free ride in the fast lane will need a special new FasTrak toll tag, known as “FasTrak Flex.”

Read more at SF Gate