How often will insurance companies get an error file? Only as a result of the monthly transmittal if an error was detected. December 14, 2016 22:22 Related articles Tennessee will email a website to pick up the error files. Will this always be the same location? Does Tennessee require vehicles with commercial coverage to be reported? Can Tennessee provide the directory structure so that the insurance companies can start scripting? What is the format of the error file? When is the full book of business expected each month?