Have a question about public transportation? Call the Green Line. A quick, fast and easy way to get information about any transit service in Tulare County, including the transit agencies of: City of Dinuba (DART), City of Porterville (COLT), City of Tulare (TIME), Tulare County (TCAT) and City of Visalia (VCC). Just dial 1-877-40-GOGREEN (1-877-404-6473). Customer service is a high priority of the Green Line Call Center.