Trying to open a business PO Box they're requesting two forms of ID… What to forms are acceptable as idea for a business to open a business PO Box?

Good question derrick, for this I would call in.

Driver license and any type of card with your picture such as atm card costco card or employment card

I worked at an Airport when we asked for two forms of Identification a original birth certificate, passport, social security and medical card we're sufficient. I agree though you should call them they may have another criteria.

Ask the post office