The NMRA Technical Committee released new rule Clarifications/Adjustments today in Factory Stock. Adjustments include:

• A Clarification/Addition to the approved Cylinder Head list.

These changes go into effect immediately, unless otherwise noted in this document. The 2020 NMRA Class Rules and all Rule Revisions/Clarifications can be found here: https://www.nmradigital.com/2020-event-info/class-rules-payouts/