# HS code 5503.30: Acrylic or modacrylic

> HS code 5503.30 covers acrylic or modacrylic. It sits in heading 55.03 (synthetic staple fibres, not carded, combed or otherwise processed for spinning) in chapter 55 (man-made staple fibres). Other goods of heading 55.03 are classified under 5503.11 (of nylon or other polyamides, of aramids), 5503.19 (of nylon or other polyamides, other), 5503.20 (of polyesters), 5503.40 (of polypropylene) or 1 other. National tariff lines under 5503.30 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/550330
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 55](https://border.bot/hs-codes/55) / [55.03](https://border.bot/hs-codes/5503) / [5503.30](https://border.bot/hs-codes/550330)

## Key facts

- HS code: 5503.30
- Covers: Acrylic or modacrylic
- Heading: [55.03: Synthetic staple fibres, not carded, combed or otherwise processed for spinning](https://border.bot/hs-codes/5503)
- Chapter: [55: Man-made staple fibres](https://border.bot/hs-codes/55)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/550330)

## What this code covers

HS code 5503.30 covers acrylic or modacrylic.

The legal text of the subheading is “Acrylic or modacrylic”, in HS2022.

## What it doesn’t cover

Other goods of heading 55.03 are classified under 5503.11 (of nylon or other polyamides, of aramids), 5503.19 (of nylon or other polyamides, other), 5503.20 (of polyesters), 5503.40 (of polypropylene) or 1 other.

- [5503.11](https://border.bot/hs-codes/550311) Of nylon or other polyamides: Of aramids
- [5503.19](https://border.bot/hs-codes/550319) Of nylon or other polyamides: Other
- [5503.20](https://border.bot/hs-codes/550320) Of polyesters
- [5503.40](https://border.bot/hs-codes/550340) Of polypropylene
- [5503.90](https://border.bot/hs-codes/550390) Other

## How it is structured

5503.30 is a six-digit subheading. Its first two digits, 55, are the chapter; the first four, 5503, are heading 55.03; the last two, 30, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 55: Man-made staple fibres
- Heading 55.03: Synthetic staple fibres, not carded, combed or otherwise processed for spinning
- Subheading 5503.30: Acrylic or modacrylic

## In other countries

National tariff lines under 5503.30 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/550330): 1 line, used by 1 other country

## Related codes

The same text, “Acrylic or modacrylic”, also divides 2 other headings in chapter 55: 5501.30 under heading 55.01 and 5506.30 under heading 55.06.

- [5501.30](https://border.bot/hs-codes/550130) Heading 55.01: Synthetic filament tow
- [5506.30](https://border.bot/hs-codes/550630) Heading 55.06: Synthetic staple fibres, carded, combed or otherwise processed for spinning

- Previous subheading: [5503.20](https://border.bot/hs-codes/550320) Of polyesters
- Next subheading: [5503.40](https://border.bot/hs-codes/550340) Of polypropylene

## Frequently asked questions

### What does HS code 5503.30 cover?

HS code 5503.30 covers acrylic or modacrylic.

### Which heading and chapter is HS code 5503.30 in?

HS code 5503.30 is in heading 55.03 (synthetic staple fibres, not carded, combed or otherwise processed for spinning) in chapter 55 (man-made staple fibres).

### Where are goods of heading 55.03 classified when 5503.30 doesn’t fit?

Other goods of heading 55.03 are classified under 5503.11 (of nylon or other polyamides, of aramids), 5503.19 (of nylon or other polyamides, other), 5503.20 (of polyesters), 5503.40 (of polypropylene) or 1 other.

### Which countries’ tariffs list national lines under HS code 5503.30?

National tariff lines under 5503.30 are live on border.bot for the United States (1 line, 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/550330.json