- Open Monday - Friday
- Open to northbound HOV traffic 5 a.m. – 10 a.m.
- Open to southbound HOV traffic 3 p.m. – 8 p.m.
- Open to vehicles less than 5 tons with 2 or more occupants
- Open to buses and motorcycles
- Nothing-in-tow allowed
- On I-93, the Southeast Expressway
- Starts near Furnace Brook Parkway in Quincy (Exit 8)
- Ends near Morrissey Boulevard in Boston (Exit 14)
- 5.4 miles long