The HTSUS chapters the customs broker exam actually tests

Classification is the second-largest topic on the exam, and it is not spread evenly over the tariff. Counted from the released sittings, 169 questions name a specific HTSUS provision, and they cluster hard: electrical machinery (85), special classification provisions (98) and machinery (84) lead. Chapters with three or more questions link to a page carrying every one.

Chapter	Covers	Questions
Chapter 85	Electrical machinery and equipment and parts; sound recorders; TV	13
Chapter 98	Special classification provisions	11
Chapter 84	Nuclear reactors, boilers, machinery and mechanical appliances; parts	10
Chapter 62	Articles of apparel and clothing accessories, not knitted or crocheted	9
Chapter 68	Articles of stone, plaster, cement, asbestos, mica or similar materials	7
Chapter 69	Ceramic products	7
Chapter 73	Articles of iron or steel	7
Chapter 61	Articles of apparel and clothing accessories, knitted or crocheted	6
Chapter 64	Footwear, gaiters and the like; parts of such articles	6
Chapter 95	Toys, games and sports requisites; parts and accessories	6
Chapter 87	Vehicles other than railway or tramway rolling stock, and parts	5
Chapter 96	Miscellaneous manufactured articles	5
Chapter 16	Preparations of meat, fish or crustaceans, molluscs	4
Chapter 21	Miscellaneous edible preparations	4
Chapter 29	Organic chemicals	4
Chapter 94	Furniture; bedding, mattresses; lamps and lighting fittings; prefab buildings	4
Chapter 07	Edible vegetables and certain roots and tubers	3
Chapter 20	Preparations of vegetables, fruit, nuts or other parts of plants	3
Chapter 27	Mineral fuels, mineral oils; bituminous substances; mineral waxes	3
Chapter 31	Fertilizers	3
Chapter 63	Other made up textile articles; sets; worn clothing and worn textile articles; rags	3
Chapter 72	Iron and steel	3
Chapter 82	Tools, implements, cutlery, spoons and forks, of base metal	3
Chapter 90	Optical, photographic, measuring, checking, precision, medical instruments	3
Chapter 09	Coffee, tea, maté and spices	2
Chapter 17	Sugars and sugar confectionery	2
Chapter 38	Miscellaneous chemical products	2
Chapter 39	Plastics and articles thereof	2
Chapter 42	Articles of leather; saddlery and harness; travel goods, handbags	2
Chapter 44	Wood and articles of wood; wood charcoal	2
Chapter 49	Printed books, newspapers, pictures and other printed products	2
Chapter 59	Impregnated, coated, covered or laminated textile fabrics	2
Chapter 71	Natural or cultured pearls, precious stones, precious metals; imitation jewelry; coin	2
Chapter 02	Meat and edible meat offal	1
Chapter 03	Fish and crustaceans, molluscs and other aquatic invertebrates	1
Chapter 04	Dairy produce; birds' eggs; natural honey; edible products of animal origin	1
Chapter 10	Cereals	1
Chapter 12	Oil seeds and oleaginous fruits; miscellaneous grains, seeds and fruit	1
Chapter 18	Cocoa and cocoa preparations	1
Chapter 25	Salt; sulfur; earths and stone; plastering materials, lime and cement	1
Chapter 33	Essential oils and resinoids; perfumery, cosmetic or toilet preparations	1
Chapter 40	Rubber and articles thereof	1
Chapter 46	Manufactures of straw, esparto or other plaiting materials; basketware	1
Chapter 51	Wool, fine or coarse animal hair; horsehair yarn and woven fabric	1
Chapter 56	Wadding, felt and nonwovens; twine, cordage, ropes	1
Chapter 57	Carpets and other textile floor coverings	1
Chapter 65	Headgear and parts thereof	1
Chapter 67	Prepared feathers and down; artificial flowers; articles of human hair	1
Chapter 70	Glass and glassware	1
Chapter 79	Zinc and articles thereof	1
Chapter 83	Miscellaneous articles of base metal	1
Chapter 91	Clocks and watches and parts thereof	1

Study classification against the chapters the exam actually uses.

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