Taxi Meters are required for vehicles offering service by the mile or kilometer in the U.S.A.and often elsewhere. In the U.S.A., meters are required to be certified as "in compliance" with federal regulations. The federal agencies issue a "CoC number" (for Certificate of Compliance}. The meters with which we deal are listed here with their CoC Number: Pulsar 2030 and 2030R: 03-057A1, Pulsar 2020 and 2020R: 97-055A1, Centrodyne Silent 610 and Silent 620: 93-128A5, Centrodyne S700: 10-051. A Brand of Mobile Data Terminal which contains the option of use as a Taxi Meter is Mobile Knowledge Models 9008 and 9006, which carry CoC Number 07-096. A previous model Pulsar 2010 is now obsolete but still in use in some places. It last was assigned CoC number 90-133. Record Electronics (REI) CGII and CGIII 03-106A1, iElectron Model MT-10 15-051. Another Brand of Mobile Data Terminal which has been offiered to American clients from Canada is Hi-Data, but to the best of our knowledge, it has never been approved for a CoC Number in U.S.A. Other brands and models are available but not handled at this time by Fred Stock Electronics - www.TaxiSource.com - www.TaxiCabElectronics.com.