Assuming we're talking about Baltimore Co. here.
Local Box-A single engine response
Medical Box- Imminent death situation (1 engine, 1 medic 1 EMS supervisor)
Local Firebox- 2 engines 1 truck. This is for calls that are determined to not require the whole fire box.
Local Rescue box-1 engine, 1 truck or 1 squad, and 1 medic unit. For calls determined to not need a full rescue box
Fire box-Full assignment including 4 engines 1 truck (two trucks if building or apartment) squad (if at night) and cheif
Rescue box- Full recues assignment including 1 engine, 1 truck, 1 squad 1 medic, 1 cheif, and 1 EMS supervisor.
Fire Rescue box- 5 engines, 1 truck ( 2 trucks if building or apartment), squad (regardless of daylight situation) 1 cheif, 1 medic, and 1 EMS supervisor
There are certain response files that will vary depending on the details of the call. Also, fire apparatus responding on a medical call require a minimum staffing of two personell. Fire apparatus responding on a fire call require a minimum staffing of four personell. MVCs are considered medical calls and require two personell, while MVCs with rescue and all other rescue calls are considered fire calls and require four personell.
{EDIT}There's also a Hazmat box but don't know the response profile off hand.
David, there's no still box for Baltimore Co. I don't know if there is one for AA Co. or not.