HTS code 9902.15.63 covers "Air conditioning machines, each incorporating a refrigerating unit, mounted on wheels or castors, rated at less than 3.52 kW per hour (provided for in 8415.82.01)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.