| 4101 | | Raw hides and skins of bovine (including buffalo) or equine animals (fresh, or salted, dried, limed, pickled or otherwise preserved, but not tanned, parchment-dressed or further prepared), whether or not dehaired or split: | | | | |
| 4103 | | Other raw hides and skins (fresh, or salted, dried, limed, pickled or otherwise preserved, but not tanned, parchment- dressed orfurther prepared), whether or not dehaired or split, other than those excluded by note 1(b) or 1(c) to this chapter: | | | | |
| 9801.00.30 | 00 | Any aircraft engine or propeller, or any part or accessory of either, previously imported, with respect to which the duty was paid upon such previous importation, if (1) reimported without having been advanced in value or improved in condition by any process of manufacture or other means while abroad, after having been exported under loan, lease or rent to an aircraft owner or operator as a temporary replacement for an aircraft engine being overhauled, repaired, rebuilt or reconditioned in the United States, and (2) reimported by or for the account of the person who exported it from the United States | X | Free | | Free |
| 9806.00.05 | | Upon the request of the Department of State, ambassadors, ministers, charge d'affaires, secretaries, counselors, attaches and other representatives, officers and employees of foreign governments, accredited to the United States or en route to or from other countries to which accredited, and their immediate families, suites and servants | | Free | | Free |
| 9806.00.40 | | Upon the request of the Department of State, ambassadors, ministers, charge d'affaires, secretaries, counselors and attaches of foreign embassies and legations | | Free | | Free |
| 9813.00.05 | | Articles to be repaired, altered or processed (including processes which result in articles manufactured or produced in the United States) | | Free, under bond, as prescribed in U.S. note 1 to this subchapter | Free (AU,BH,CA, CL,IL,JO,MA, MX,P,SG) | Free, under bond, as prescribed in U.S. note 1 to this subchapter |
