The NMRA's Districts (see image below) are divided into 17 Regions which cover the United States, Australasia, Canada, and the British Isles now including Europe.

The NMRA uses five types of Technical Documents to present information. The NMRA, in its standards and recommended practices, addresses only the specific standards and recommended practices for …

Join the NMRA and enjoy the many benefits of membership. Please review the information below before completing your membership application. Want to "test drive" the NMRA for a little while? Sign up for …

There are over 150 NMRA Divisions - groups of NMRA members in local communities. Most hold regular meetings featuring interesting and informative presentations on subjects ranging from "how …

The NMRA Achievement Program (AP) is a guide to help you on your journey through the world of model railroading. The AP provides incentive to learn and master the many crafts and skills …

This Year's Convention 2026 Scenic City Express, Chattanooga, TN 2026 2026 NMRA National Convention – Chattanooga, TN

Many of the functions of the NMRA are performed by the Departments, which are staffed by volunteers. The NMRA holds a National Convention each year, and regions sponsor conventions in their areas …

The NMRA is an international organization dedicated to Scale Model Railroading. It is organized into 18 Regions which cover the United States, Australasia, Canada, the British Isles and Europe.

As charged by the NMRA REGULATIONS, NMRA STANDARDS provide the primary basis upon which Interchange between equipment and various North American scale model railroads is founded.

Standard - NMRA Standards are to establish the broadest correlated set of limiting dimensions, electrical parameters and communications parameters within which interchange may be assured.