Guests for Oath Ceremony

[immihelp]

My husband is scheduled for his oath ceremony on January 28 at the Lowell Memorial Auditorium.

How many guests is he allowed to have attend?

[immihelp]

There is no rule for that. Check with the local facility there. If they have
space, they can allow. Otherwise, no guests are allowed.

[awesomecal]

I am in the same situation. I called the place where oath ceremony is scheduled and they mentioned it is first time oath is being held there and they have no idea about guests.

Would USCIS know about guest policy?