An inspection of my electric supply service on the outside of my home in Maryland said I need 3 termination points and two grounding rods. The grounding rods I can get but I have no clue about these termination points. Can you explain?
The termination points are where the utility attaches their wires to your system. You need 3 termination points because most US residences have 240/120 split phase service which is provided on three wires: two hots plus a neutral. The ground is of course provided by you via ground rods or (my favorite) a Ufer Ground (concrete enclosed grounding conductor).
Here is a photo of an overhead service termination.