Fire rated doors in 4 unit building

[Adriane Boggs]

I have a 4 unit multi in Cincinnati and I’m having a hard time finding specific information on the basement door requirements. My question is does the door leading to basement need to be fire proof?

There are three door in the basement. One is a fire door that opens to boiler room and another fire door that opens to the laundry room and another fire door that opens to the garage.

With these three doors in place would the basement door at the top of the steps also need to be a fire door?

Thanks for any insight!