your portal to more fun in scale model railroading
your portal to more fun in scale model railroading
DCC Manufacturers are issued an Identification number (ID) by the NMRA after they demonstrate that they can produce a decoder or other DCC product that conforms to all applicable NMRA DCC Standards. Once an ID is issued that value is stored in CV8. To find the Manufacturer;s ID read CV8. The decoder version is stored in CV7. Please refer to the section DCC Conformance Testing on the Conformance and Inspection Page. New manufacturers that are interested in obtaining an ID should contact CIManager [at] nmra.org for information about sending equipment for testing and certification for a Warrant of Conformance. Below is a list of DCC Manufacturer's ID previously issued.
Thank you for your interest in the NMRA's Digital Command Control (DCC) Standards and Recommended Practices. The standards can now be found along with the rest of the NMRA's standards at NMRA STANDARDS AND RECOMMENDED PRACTICES under S-9 Electrical. These documents supersede all previous versions.
Previous revisions were submitted to the Board of Directors and approved at their May 2022 meeting. These are now on the Standards page.
If you need additional information or wish to make further inquires regarding NMRA DCC, please contact the NMRA Standards & Conformance Department at tech-chair [at] nmra.org and dcc-manager [at] nmra.org
National Model Railroad Association, Inc.
Department #635
P.O. Box 1328, Soddy Daisy TN 37384-1328
Phone: (423) 892-2846 - Fax: (423) 899-4869
Updated 18-Jan-2024