Hello:

Was just wondering about this a bit.
Live in the Boston area, in a typical Colonial built about 30 yrs ago.

Have the "standard" 220 V line coming into the house from the street line
Appears to be 3 conductors, the 2 phases and the neutral.

My question is that I keep reading about houses needing, and the NEC
requiring, a ground (or grounding) rod right outside
the house.

Don't seem to have one.

Is an actual ground rod required ?
Where would it be ?

If not, why not ?

Thanks,
Bob