Designated smoking area in a loading dock

Can you please comment on whether the following approach would be acceptable to achieve this prerequisite: A project building is attached to a loading dock on the property, and the designated smoking area is located inside the loading dock under cover, and at least 25 feet from all building entrances, operable windows, and air intakes. The building is pressurized, so the air from the loading dock doesn't enter the building, but there is a door that connects the loading dock to the building. Is the loading dock considered "interior", or is it considered exterior, and we would meet the requirements of the prerequisite by having an exterior designated smoking area?