Emergency Ride Home (ERH) Registration Click on the link below to register to be enrolled in the Emergency Ride Home (ERH) Program. To enroll, you must already be using a commute option at least 2 days a week. You can also choose to be matched into a carpool or vanpool if you are not already doing so. If you have any questions, please call BACS at 1-800-998-RIDE (7433). ERH Registration Form     Click here for a Spanish version of the Rideshare Registration Form. This document is a PDF (Portable Document Format) and requires Adobe Acrobat Reader (free) for viewing and printing. Click here to download Adobe Acrobat Reader.