| Alleghany Western Division |
NY & PA, USA |
| Allegheny Plateau Division |
Pennsylvania, USA |
| Atlantic Division of the TCA |
NJ & PA, USA |
| Blue Ridge Division |
Pennsylvania, USA |
| Clinton Central Model Railroad Club |
Lock Haven, Pennsylvania, USA |
| Cumberland Valley Model Railroad Club |
Chambersburg, Pennsylvania, USA |
| Eastern Division of the TCA |
DE, MD, NJ, NY, PA, & VA, USA |
| Fort Pitt Division of the TCA |
PA & WV, USA |
| Keystone Division |
OH, PA, & WV, USA |
| Keystone Division of the TCA |
Pennsylvania, USA |
| McKeesport Model Railroad Club |
McKeesport, Pennsylvania, USA |
| Miniature Railroad Club of York |
York, Pennsylvania, USA |
| NMRA Mid-Central Region |
IN, KY, NY, OH, PA, & WV, USA |
| NMRA Mid-Eastern Region |
DC, DE, MD, NC, NJ, PA, SC, VA, & WV, USA |
| Philadelphia Division |
DE & PA, USA |
| Short Line Model Railroad Club |
Ephrata, Pennsylvania, USA |
| South Mountain Division |
MD, PA, & WV, USA |
| Southern Tier Division |
NY & PA, USA |
| Susquehanna Division |
Pennsylvania, USA |
