your portal to more fun in scale model railroading
your portal to more fun in scale model railroading
The NMRA, in its standards and recommended practices, addresses only the specific standards and recommended practices for model railroads. These standards and recommended practices do not address any legal requirements. It is the responsibility of the manufacturer to determine if their product conforms to all applicable governmental laws and regulations.
S-9 Electrical (3/15/2024)
The comment period April 12 - May 10, 2024.
S-9.3.2 BiDirectional Communication (1/3/21)
The comment period has not been set.
S-9.2.1 DCC Extended Packet Format (5/122023)
The comment period has not been set.
S-9.2.2 Configruation Variables (6/8/2023)
The comment period has not been set.
There are currently no documents for voting.
There are currently no documents for comment.
RP-2 Standard Gauges (15-Jan-2024) was approved by the board January 26, 2024
Previous document revisions were submitted to the Board of Directors and approved at their May 2022, August 2023 and January 26, 2024 meetings. 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, CIManager [at] nmra.org or 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 23-Mar-2024