# United States tariff line 6806.10.00.40: Batts, exceeding 61 cm in width > In the United States tariff, line 6806.10.00.40 covers slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls, batts, exceeding 61 cm in width. The general (MFN) duty rate is 3.9%. It falls under HS subheading 6806.10 in heading 68.06 (chapter 68). Source: https://border.bot/countries/united-states/hs-codes/6806100040 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 68](https://border.bot/countries/united-states/hs-codes/68) / [6806.10](https://border.bot/countries/united-states/hs-codes/680610) / [6806.10.00.40](https://border.bot/countries/united-states/hs-codes/6806100040) ## Key facts - Tariff line: 6806.10.00.40 - Covers: Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls, batts, exceeding 61 cm in width - Duty (MFN): 3.9% - Preferential rates: From free (17 programmes or origins) - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [6806.10](https://border.bot/hs-codes/680610) ## What this line covers In the United States tariff, line 6806.10.00.40 covers slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls, batts, exceeding 61 cm in width. Its legal text is “Batts, exceeding 61 cm in width”, read under “Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls” and “Other”. Products commonly classified here include the foregoing presented in bulk, sheets or rolls, designed for use in motor vehicles of heading 8703, presented in bulk, sheets or rolls, designed for use in motor vehicles of heading 8703 and Catalytic converter needled blanket mats of ceramic fibers containing over 65 p… (border.bot’s search keywords, not legal text). ## How it is structured It falls under HS subheading 6806.10 in heading 68.06 (chapter 68). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 68: Articles of stone, plaster, cement, asbestos, mica or similar materials - Heading 68.06: Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69 - Subheading 6806.10: Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls - Within the subheading: Other - Line 6806.10.00.40: Batts, exceeding 61 cm in width ## Duty The general (MFN) duty rate is 3.9%. The rate is published on 6806.10.00. Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A). - Free: a group of origins (origin group A) (A) - Free: United States-Australia Free Trade Agreement (AU) - Free: United States-Bahrain Free Trade Agreement Implementation Act (BH) - Free: United States-Chile Free Trade Agreement (CL) - Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO) - Free: African Growth and Opportunity Act (D) - Free: Caribbean Basin Economic Recovery Act (E) - Free: United States-Israel Free Trade Area (IL) - Free: United States-Jordan Free Trade Area Implementation Act (JO) - Free: United States-Korea Free Trade Agreement Implementation Act (KR) - Free: United States-Morocco Free Trade Agreement Implementation Act (MA) - Free: United States-Oman Free Trade Agreement Implementation Act (OM) - Free: Dominican Republic-Central America-United States Free Trade Agreement (P) - Free: United States-Panama Trade Promotion Agreement Implementation Act (PA) - Free: United States-Peru Trade Promotion Agreement Implementation Act (PE) - Free: United States-Mexico-Canada Agreement (S) - Free: United States-Singapore Free Trade Agreement (SG) ## In other countries No other national tariff on border.bot has live lines under 6806.10 yet. - [The Harmonized System text for 6806.10](https://border.bot/hs-codes/680610) ## Other lines under 6806.10 - [6806.10.00.10](https://border.bot/countries/united-states/hs-codes/6806100010) Accoustical pads and boards - [6806.10.00.20](https://border.bot/countries/united-states/hs-codes/6806100020) Batts, not exceeding 61 cm in width - [6806.10.00.60](https://border.bot/countries/united-states/hs-codes/6806100060) Pipe coverings - [6806.10.00.90](https://border.bot/countries/united-states/hs-codes/6806100090) Other - Previous line: [6806.10.00.20](https://border.bot/countries/united-states/hs-codes/6806100020) Batts, not exceeding 61 cm in width - Next line: [6806.10.00.60](https://border.bot/countries/united-states/hs-codes/6806100060) Pipe coverings ## Frequently asked questions ### What does tariff line 6806.10.00.40 cover in the United States tariff? In the United States tariff, line 6806.10.00.40 covers slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls, batts, exceeding 61 cm in width. ### What is the general (MFN) duty on 6806.10.00.40 in the United States? The general (MFN) duty rate is 3.9%. The rate is published on 6806.10.00. ### Which preferential rates apply to 6806.10.00.40? Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A). ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/6806100040.json