Product Note #1 - Flammable, cannot be shipped via Air
This item (or one or more components of this item) is classified as flammable. Due to regulations, orders containing flammable items may not be shipped via aircraft. Therefore such orders cannot be shipped to Alaska, Hawaii, Guam, Puerto Rico, the Virgin Islands, or international locations. Flammable items also cannot be shipped via 1-Day Express and 2-Day Express methods. This item may only be shipped within the contiguous United States using Surface Shipment.In addition, regarding rocket engines
In addition to the restrictions pointed out above, rocket engines may only be shipped via the United States Postal Service (UPS does not handle these). Orders containing rocket engines must utilize a USPS deliverable shipping address.