First, apply for Huaxia Bank's credit card to register ETC, and use Huaxia Express Card with ETC label to pass the ETC lane of the toll station (remember that the entrance speed should not exceed 20mph, otherwise the scanning will be unsuccessful! ), the Autopass electronic tag emits a beep, the tag indicator light turns green, and the driveway railing automatically opens, so you can pass. You have to charge for opening the railing, then scan it at the same time when you get off the highway, and then deduct the fee.