Junction boxes or troughs ahead of utility companies meter

[XMarineLCPL]

Hello,
I have always refrained from installing any sort of access (i.e junction boxes / gutters) to the utility company's cables before ahead of the meter / be it underground service or overhead.
I have installed large tap boxes on multi-unit commercial space buildings which would then pipe into each meter underground, but never in a residential situation.
I have not found anything within the NEC or the Chicago Electrical code which prohibits. I'm thinking I need to check the utility companie's requirements which is Commonweath Edison / Excelon Co.
If I had to guess it would need to be lockable. May I please get your input.
Thank you so much

 

[Rick 0920]

POCO's do not have to comply with our rules as they have their own that they comply with. I wouldn't see a problem with it as long as it was lockable and not installed in a place where it could be susceptible to damage. But you would have to get their blessing on this one.

 

[tom baker]

My POCO requirements are laid out in their customer service handbook. It used to be they wanted LBs etc to be able to be sealed with a meter seal