# HS heading 55.04: Artificial staple fibres, not carded, combed or otherwise processed for spinning

> HS heading 55.04 covers artificial staple fibres, not carded, combed or otherwise processed for spinning. It is in chapter 55 (man-made staple fibres). It is split into 2 subheadings: 5504.10 (of viscose rayon) and 5504.90 (other). National tariff lines under heading 55.04 are live on border.bot for the United States (2 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/5504
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 55](https://border.bot/hs-codes/55) / [55.04](https://border.bot/hs-codes/5504)

## Key facts

- Heading: 55.04
- Description: Artificial staple fibres, not carded, combed or otherwise processed for spinning
- Chapter: 55: Man-made staple fibres
- Subheadings: 2
- Edition: HS2022

## What this code covers

HS heading 55.04 covers artificial staple fibres, not carded, combed or otherwise processed for spinning.

It is split into 2 subheadings: 5504.10 (of viscose rayon) and 5504.90 (other).

- [5504.10](https://border.bot/hs-codes/550410) Of viscose rayon
- [5504.90](https://border.bot/hs-codes/550490) Other

## What it doesn’t cover

Other goods of chapter 55 are classified in its other 15 headings, listed below.

- [55.01](https://border.bot/hs-codes/5501) Synthetic filament tow
- [55.02](https://border.bot/hs-codes/5502) Artificial filament tow
- [55.03](https://border.bot/hs-codes/5503) Synthetic staple fibres, not carded, combed or otherwise processed for spinning
- [55.05](https://border.bot/hs-codes/5505) Waste (including noils, yarn waste and garnetted stock) of man- made fibres
- [55.06](https://border.bot/hs-codes/5506) Synthetic staple fibres, carded, combed or otherwise processed for spinning
- [55.07](https://border.bot/hs-codes/5507) Artificial staple fibres, carded, combed or otherwise processed for spinning
- [55.08](https://border.bot/hs-codes/5508) Sewing thread of man-made staple fibres, whether or not put up for retail sale
- [55.09](https://border.bot/hs-codes/5509) Yarn (other than sewing thread) of synthetic staple fibres, not put up for retail sale
- [55.10](https://border.bot/hs-codes/5510) Yarn (other than sewing thread) of artificial staple fibres, not put up for retail sale
- [55.11](https://border.bot/hs-codes/5511) Yarn (other than sewing thread) of man-made staple fibres, put up for retail sale
- [55.12](https://border.bot/hs-codes/5512) Woven fabrics of synthetic staple fibres, containing 85 % or more by weight of synthetic staple fibres
- [55.13](https://border.bot/hs-codes/5513) Woven fabrics of synthetic staple fibres, containing less than 85 % by weight of such fibres, mixed mainly or solely with cotton, of a weight not exceeding 170 g/m2
- [55.14](https://border.bot/hs-codes/5514) Woven fabrics of synthetic staple fibres, containing less than 85 % by weight of such fibres, mixed mainly or solely with cotton, of a weight exceeding 170 g/m2
- [55.15](https://border.bot/hs-codes/5515) Other woven fabrics of synthetic staple fibres
- [55.16](https://border.bot/hs-codes/5516) Woven fabrics of artificial staple fibres

## How it is structured

Heading 55.04 is one of 16 headings in chapter 55. Its first two digits, 55, are the chapter; the next two, 04, number the heading within it. Its subheadings add two more digits (5504.10, 5504.90).

## In other countries

National tariff lines under heading 55.04 are live on border.bot for the United States (2 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/55): 2 lines, used by 1 other country

- Previous heading: [55.03](https://border.bot/hs-codes/5503) Synthetic staple fibres, not carded, combed or otherwise processed for spinning
- Next heading: [55.05](https://border.bot/hs-codes/5505) Waste (including noils, yarn waste and garnetted stock) of man- made fibres

## Frequently asked questions

### What does HS heading 55.04 cover?

HS heading 55.04 covers artificial staple fibres, not carded, combed or otherwise processed for spinning.

### Which chapter is HS heading 55.04 in?

HS heading 55.04 is in chapter 55 (man-made staple fibres).

### How many subheadings does HS heading 55.04 have?

HS heading 55.04 has 2 subheadings: 5504.10 (of viscose rayon) and 5504.90 (other).

### Which countries’ tariffs list national lines under HS heading 55.04?

National tariff lines under heading 55.04 are live on border.bot for the United States (2 lines, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 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.

Machine-readable: https://border.bot/hs-codes/5504.json