You can go to the OCTA office and sign up or call the 1800 number, the office is on Main street in Orange across from CHOC, or thay have a office in Corona, You will need a transponder or you will get a ticket in the mail. This is only for the 91 express lane none of the others will let you ride for free (133,241,73, ) you will need to pay, LOL I missed a toll last night on the 241 in my wifes SUV yesterday.
