Heading 3909 · Amino-resins, phenolic resins and polyurethanes, in primary forms

3909.50

Amino-resins, phenolic resins and polyurethanes, in primary… — Polyurethanes:

Official notices

Actions of the President, the USTR or U.S. Customs and Border Protection (CBP) that name this code.

Oct 23, 2026 · The White House Further Modifying the Scope of Products of Canada Subject to the Additional Duties Imposed to Offset Canadian Discrimination Against the Commerce of the United States with Respect to Motor Vehicles

Mentioned in Chapter 99

The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 3909.50, a broader code that includes it, or a narrower code within it.

U.S. note	Excerpt	Headings that refer to it
U.S. note 20(d)	(d) Heading 9903.88.02 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in (1) heading 9903.88.12 and…	9903.88.02
U.S. note 51(b)(3)	(3) Heading 9903.03.14 applies to articles classifiable in the following provisions of the tariff schedule: [Compiler's note: List may appear or continue on a subsequent page; read numbers from left to right.]	9903.03.14

Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.

In the tariff

3909Amino-resins, phenolic resins and polyurethanes, in primary forms
3909.50Polyurethanes
3909.50.10.00ElastomericFree
3909.50.20.00Cements2.1%
3909.50.50.00Other6.3%