S.G.
emergency questions like what is your policy, or arrangments if a child needs emergency care, who do they contact first, what hospital will they take him to? fire plans, tornado plans, if a flood happens, if school closes due to severe weather will they be open, (more than likely not)
teacher/child ratio
dicipline methods (corporal is usually not practiced-in oklahoma, corporal punishment can have severe consequenses and almost every daycare i've had will not do it)
transportation methods for any circumstance, emergency, field trips, etc
photography permission slips (every day care i've had will not take pictures of a child unless parents sign a permission slip)
eating and nap schedule
make sure you get a handbook, then hand book should include the director's/owner's info, schedules, policy's etc
i would take him with you and let him play with the other kids that he'll be spending the day with to see how he'll interact with them
i would also strongly advise to just show up unexpectedly every now and then to see how they are interacting behind your back
LISTEN TO YOUR CHILD if he comes home one day acting completely different or is afraid to go back to school all the sudden, listen to his actions, they may tell you if something is wrong.
teacher's SHOULDN'T have their kids in the same class as their children check that policy
don't EVER let a teacher or director turn a conference down to you. my daughter was in a day care her teacher's son was in the same class as my daughter, well all of the sudden there started becoming problems. my daughter and this boy were commiting adult acts that the faculity laughed at at first, then later decided it was getting out of hand (duh!) i was talking to the director and asked for a conference, she told me that she was busy and had a lot of kids there, finished the call with me, then called my daughter's dad (knowing we're divorced) and told him she wasn't busy, just didn't want to talk to me at that moment....i was FURIOUS and so was he, we met up there together, and complained about it. the following morning i talked to her teacher and asked who's kid this was that was acting like this with my daughter, surely enough she admited it was her's, that answered my question, i took her out of the day care immediately, called the owner and filed a complaint with her and DHS, i checked the records later, and apparently that was going on with other kids...needless to say the daycare is under different mgnt now and both the director and the teacher had been fired.
i don't say this to scare you but to stress the importance to KNOW what goes on with your son when he's at any daycare, no matter how long he's there, he may be there for years, but if he keeps getting new teacher's they may have a high turn over rate, and that would raise a concern for me.
you have a lot of GREAT advice on here, dont' be afraid to write everything down that comes to mind so you don't forget..maybe start you a folder of everythign, this will especially come in handy if something goes wrong between you and the facility