19 C.F.R. § 10.459 – De minimis.

(a) Except as provided in paragraphs (b) and (c) of this section, a good that does not undergo a change in tariff classification pursuant to General Note 26(n), HTSUS, will nonetheless be considered to be an originating good if—
1. (1) The value of all non-originating materials that are used in the production of the good and do not undergo the applicable change in tariff classification does not exceed 10 percent of the adjusted value of the good;
2. (2) The value of such non-originating materials is included in calculating the value of non-originating materials for any applicable regional value-content requirement under this note; and
3. (3) The good meets all other applicable requirements of General Note 26(n), HTSUS.
(b) Paragraph (a) of this section does not apply to:
1. (1) A non-originating material provided for in Chapter 4 of the Harmonized System, or a non-originating dairy preparation containing over 10 percent by weight of milk solids provided for in subheadings 1901.90 or 2106.90 of the Harmonized System, that is used in the production of a good provided for in Chapter 4 of the Harmonized System;
2. (2) A non-originating material provided for in Chapter 4 of the Harmonized System, or non-originating dairy preparations containing over 10 percent by weight of milk solids provided for in subheading 1901.90 of the Harmonized System, that are used in the production of the following goods: infant preparations containing over 10 percent in weight of milk solids provided for in subheading 1901.10 of the Harmonized System; mixes and doughs, containing over 25 percent by weight of butterfat, not put up for retail sale, provided for in subheading 1901.20 of the Harmonized System; dairy preparations containing over 10 percent by weight of milk solids provided for in subheadings 1901.90 or 2106.90 of the Harmonized System; goods provided for in heading 2105 of the Harmonized System; beverages containing milk provided for in subheading 2202.90 of the Harmonized System; or animal feeds containing over 10 percent by weight of milk solids provided for in subheading 2309.90 of the Harmonized System;
3. (3) A non-originating material provided for in heading 0805 of the Harmonized System or subheadings 2009.11 through 2009.30 of the Harmonized System that is used in the production of a good provided for in subheadings 2009.11 through 2009.30 of the Harmonized System, or in fruit or vegetable juice of any single fruit or vegetable, fortified with minerals or vitamins, concentrated or unconcentrated, provided for in subheadings 2106.90 or 2202.90 of the Harmonized System;
4. (4) A non-originating material provided for in Chapter 15 of the Harmonized System that is used in the production of a good provided for in headings 1501 through 1508, 1512, 1514, or 1515 of the Harmonized System;
5. (5) A non-originating material provided for in heading 1701 of the Harmonized System that is used in the production of a good provided for in headings 1701 through 1703 of the Harmonized System;
6. (6) A non-originating material provided for in Chapter 17 or in heading 1805 of the Harmonized System that is used in the production of a good provided for in subheading 1806.10 of the Harmonized System;
7. (7) A non-originating material provided for in headings 2203 through 2208 of the Harmonized System that is used in the production of a good provided for in heading 2207 or 2208 of the Harmonized System; and
8. (8) A non-originating material used in the production of a good provided for in Chapters 1 through 21 of the Harmonized System unless the non-originating material is provided for in a different subheading than the good for which origin is being determined under this section.
(c) A textile or apparel good provided for in Chapters 50 through 63 of the Harmonized System that is not an originating good because certain fibers or yarns used in the production of the component of the good that determines the tariff classification of the good do not undergo an applicable change in tariff classification set out in General Note 26(n), HTSUS, shall nonetheless be considered to be an originating good if the total weight of all such fibers or yarns in that component is not more than seven percent of the total weight of that component. A good containing elastomeric yarns in the component of the good that determines the tariff classification of the good shall be considered to be an originating good only if such yarns are wholly formed in the territory of a Party. For purposes of this paragraph, if a good is a fiber, yarn or fabric, the component of the good that determines the tariff classification of the good is all of the fibers in the yarn, fabric or group of fibers.