Below is the 2017 Supplemental Benefits Enrollment Schedule for Local 589. Please call National Group Protection (NGP) with any enrollment questions at (800) 344-9016.
| Location | Enrollment Dates |
| Albany Street Garage | September 14 – 15 |
| Alewife Yard | September 6 – 8 |
| Arborway Yard | September 6 – 8 |
| Ashmont | September 6 – 8 |
| Bennett Garage | September 6 – 12 |
| Cabot Garage | September 6 – 11 |
| Charlestown Garage | September 6 – 12 |
| Everett Shops / Fellsway | September 11 – 12 |
| North Cambridge | September 12 – 13 |
| JFK | September 6 – 8 |
| Lynn Garage | September 11 – 13 |
| Mattapan Yard | September 6 – 8 |
| Orient Heights/Wonderland | September 11 – 12 |
| Quincy Garage/Braintree | September 13 – 15 |
| Reservoir Carhouse | September 13 – 15 |
| Riverside Yard | September 13 – 15 |
| Southampton | September 6 – 8 |
| Wellington | September 14 – 15 |
