# United States tariff line 0510.00.20.00: Ambergris, castoreum, civet and musk > In the United States tariff, line 0510.00.20.00 covers ambergris, castoreum, civet and musk. The general (MFN) duty rate is 5.1%. It falls under HS subheading 0510.00 in heading 05.10 (chapter 05). Source: https://border.bot/countries/united-states/hs-codes/0510002000 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 05](https://border.bot/countries/united-states/hs-codes/05) / [0510.00](https://border.bot/countries/united-states/hs-codes/051000) / [0510.00.20.00](https://border.bot/countries/united-states/hs-codes/0510002000) ## Key facts - Tariff line: 0510.00.20.00 - Covers: Ambergris, castoreum, civet and musk - Duty (MFN): 5.1% - 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: [0510.00](https://border.bot/hs-codes/051000) ## What this line covers In the United States tariff, line 0510.00.20.00 covers ambergris, castoreum, civet and musk. Its legal text is “Ambergris, castoreum, civet and musk”. ## How it is structured It falls under HS subheading 0510.00 in heading 05.10 (chapter 05). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 05: Products of animal origin, not elsewhere specified or included - Heading 05.10: Ambergris, castoreum, civet and musk; cantharides; bile, whether or not dried; glands and other animal products used in the preparation of pharmaceutical products, fresh, chilled, frozen or otherwise provisionally preserved - Line 0510.00.20.00: Ambergris, castoreum, civet and musk ## Duty The general (MFN) duty rate is 5.1%. 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 0510.00 yet. - [The Harmonized System text for 0510.00](https://border.bot/hs-codes/051000) ## Other lines under 0510.00 - [0510.00.40.10](https://border.bot/countries/united-states/hs-codes/0510004010) Pancreas glands - [0510.00.40.20](https://border.bot/countries/united-states/hs-codes/0510004020) Bile and other animal secretions - [0510.00.40.40](https://border.bot/countries/united-states/hs-codes/0510004040) Cantharides; glands (other than pancreas), organs and other animal products used in the preparation of pharmaceutical products - Previous line: [0508.00.00.00](https://border.bot/countries/united-states/hs-codes/0508000000) Coral and similar materials, unworked or simply prepared but not otherwise worked; shells of molluscs, crustaceans or echinoderms and cuttlebone, unworked or simply prepared but not cut to shape, powder and waste thereof - Next line: [0510.00.40.10](https://border.bot/countries/united-states/hs-codes/0510004010) Pancreas glands ## Frequently asked questions ### What does tariff line 0510.00.20.00 cover in the United States tariff? In the United States tariff, line 0510.00.20.00 covers ambergris, castoreum, civet and musk. ### What is the general (MFN) duty on 0510.00.20.00 in the United States? The general (MFN) duty rate is 5.1%. ### Which preferential rates apply to 0510.00.20.00? 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/0510002000.json