| Stop ID | Name | Description | # Trips |
|---|
| FR-0301-B | Littleton/Route 495 | Littleton/Route 495 - Commuter Rail Shuttle | 60 |
| FR-0361-B2 | Ayer - Parking Lot | Ayer - Commuter Rail Shuttle - Parking Lot | 60 |
| FR-0394-B0 | Shirley - Front St @ Phoenix St | Shirley - Commuter Rail Outbound Shuttle - Front St @ Phoenix St | 30 |
| FR-0394-B1 | Shirley - Front St @ Phoenix St | Shirley - Commuter Rail Boston Shuttle - Front St @ Phoenix St | 30 |
| FR-0451-B | North Leominster - Busway | North Leominster - Commuter Rail Shuttle - Busway | 60 |
| FR-0494-B | Fitchburg - Intermodal Transportation Center | Fitchburg - Commuter Rail Shuttle - Intermodal Transportation Center | 60 |
| FR-3338-B | Wachusett - Parking Lot | Wachusett - Commuter Rail Shuttle - Parking Lot | 60 |