Sec. 10-225. Exceptions to tax collection

No tax shall be payable under this Subdivision on a room rental paid to any hospital, medical clinic, convalescent home, or home for aged persons. No tax is to be collected upon room rental, paid for occupancy by any such transient who is a foreign government officer or employee exempted from taxation by reason of an international treaty or any Act of Congress. A separate certificate for each exemption will be submitted with the collection report.