Although CARFAX continuously expands its database and resources, some information is not allowed to be provided. Under the 1994 U.S. Drivers Privacy Protection Act, personal information such as names, telephone numbers and addresses of current or previous owners are neither collected nor reported.[14] CARFAX does not have access to every facility and mistakes are sometimes made by those who input data. In the event information is disputed but cannot be verified, CARFAX allows consumers and dealerships to add information to its reports.[15]