| Status | Not In Use |
| Possible Uses | None known |
| Last Known Use | Letter would have been used for a line that would have substituted Long Island Railroad service between Jamaica and Penn Station due to an Amtrak strike that never occured. |
| Equipment where this bullet can be found | R32 and R38 only |
| Status | Not In Use |
| Possible Uses | None known |
| Last Known Use | None known in this form. |
| Equipment where this bullet can be found | R32 and R38 only |
Shuttle| Status | In Use |
| Line Terminals | North: Franklin: Franklin Av/Fulton St, Brooklyn 42 St: Times Square, Manhattan Grand: West 4 Street, Manhattan South: Franklin: Prospect Park, Brooklyn 42 St: Grand Central, Manhattan Grand: Grand St, Manhattan Bullet may be used for other shuttles as well. |
| Equipment where this bullet can be found | All except R142/142A and R143 |
JFK Express| Status | Not In Use |
| Possible Uses | Special service to/from JFK Airport (Howard Beach station) |
| Last Known Use | Service described above from 57 St/6 Av (later 21 St-Queensbridge) 1978 to 1990 Apr 14. Extra fare was required to ride train (apparently collected south of Jay Street). It made all stops between 21-Queensbridge and 34 Street, then stopped at: W 4 St, Chambers St, Broadway-Nassau, Jay Street, Howard Beach |
| Equipment where this bullet can be found | All B-div. equipment from R32 through R46, R68's originally had them as well, apparently between H and J, suggesting that it would also be called the letter I line. |