All, and this means ALL, items imported or exported must be assigned very specific identification numbers according to nationally or internationally recognized tariff systems. Both the 10 digit Harmonized Tariff Schedule (HTS) and Schedule B classification numbers are based on simpler 4 and 6 digit “HS” numbers as used internationally and by NAFTA (and not shown here). In the U.S. only the 10 digit numbers may be used, although there are two separate lists for import and export classifications in which the numbers for any given item may or may not be the same (the export system contains more detailed classification categories, while the import system is slightly simpler).

In practice, when exporting from the U.S. it’s acceptable when filing the AES/Census Bureau’s EEI to use either the HTS or the Schedule B code numbers; but when importing into the U.S. only the HTS numbers can be used on any Customs or FWS documents (that’s just the way it is – it doesn’t have to make sense!). The below links on the alphabetical lists may only get you to the basic 6-digit code, in which case you would use that information to search for the full 10-digit number by “drilling down” through the successive section and chapter links:

HTS (import or export) section and chapter listing.
HTS (import or export) alphabetical list of items.
AES Schedule B (export only) section and chapter listing.
AES Schedule B (export only) alphabetical list of items.

The first two digits in any classification number refer to the regulations Chapter for an item (“03” is Chapter 3, “92” is Chapter 92, etc.). Some specific import or export HTS and corresponding export only Schedule B item classifications are:

Import or export HTS: 0507.10.0000 (export only Schedule B: 0507.10.0000): Only mastodon or fossil ivories but not elephant, unworked or simply prepared but not cut to shape, and scraps from these allowable ivories.

Import or export HTS: 0507.90.0000 (export only Schedule B: 0507.90.0000): Tortoiseshell, horns, antlers, hooves, claws, and beaks, unworked or simply prepared but not cut to shape, and scraps. WARNING: FWS may or may not allow these to be imported/exported, so make sure you know what the law is on any given species.

Import or export HTS: 0508.00.0000 (export only Schedule B: 0508.00.0000): Shells of molluscs, unworked or simply prepared but not cut to shape, and shell scraps.

Import or export HTS: 4420.90.8000 (export only Schedule B: 4420.90.8000):
Inlaid wood articles.

Import or export HTS: 9202.90.2000 (export only Schedule B: 9202.90.3000): Acoustic guitars, under $100 excluding the value of the case.

Import or export HTS: 9202.90.4000 (export only Schedule B: 9202.90.3000): Acoustic guitars, over $100 excluding the value of the case.

Import or export HTS: 9207.90.0040 (export only Schedule B: 9207.90.0040): Amplified or electric guitars.

Import or export HTS: 9209.92.6000 (export only Schedule B: 9209.92.0000): Bows, and any parts for bows or bowed string instruments.

Import or export HTS: 9209.92.8000 (export only Schedule B: 9209.92.0000): Guitar parts and accessories (including cut inlays or instrument parts).

Import or export HTS: 9601.10.0000 (export only Schedule B: 9601.10.0000): Worked ivory and articles of ivory (only mastodon or fossilized ivories, but not elephant).

Import or export HTS: 9601.90.2000 (export only Schedule B: 9601.90.0000): Articles of worked shell (how Duke of Pearl products are classified).

Import or export HTS: 9601.90.6000 (export only Schedule B: 9601.90.0000): Articles of tortoiseshell, bone, horn, antlers, hoof, quill, coral, or any combination thereof. WARNING: FWS may or may not allow these to be imported/exported, so make sure you know what the law is on any given species.

Import or export HTS: 9606.29.4000 (export only Schedule B: 9606292000):
M.O.P. buttons.

Import or export HTS: 9706.00.0020 (export only Schedule B: 9706.00.0000): Antiques, silverware, over 100 years old.

Import or export HTS: 9706.00.0060 (export only Schedule B: 9706.00.0000): Antiques (not furniture), of any material other than silver, over 100 years old.