# HS code 4812.00: Filter blocks, slabs and plates, of paper pulp

> HS code 4812.00 covers filter blocks, slabs and plates, of paper pulp. It sits in heading 48.12 (filter blocks, slabs and plates, of paper pulp) in chapter 48 (paper and paperboard; articles of paper pulp, of paper or of paperboard). It is the only subheading of heading 48.12, so every good of the heading is classified here. National tariff lines under 4812.00 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/481200
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 48](https://border.bot/hs-codes/48) / [48.12](https://border.bot/hs-codes/4812) / [4812.00](https://border.bot/hs-codes/481200)

## Key facts

- HS code: 4812.00
- Covers: Filter blocks, slabs and plates, of paper pulp
- Heading: [48.12: Filter blocks, slabs and plates, of paper pulp](https://border.bot/hs-codes/4812)
- Chapter: [48: Paper and paperboard; articles of paper pulp, of paper or of paperboard](https://border.bot/hs-codes/48)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/481200)

## What this code covers

HS code 4812.00 covers filter blocks, slabs and plates, of paper pulp.

The legal text of the subheading is “Filter blocks, slabs and plates, of paper pulp”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 48.12, so every good of the heading is classified here.

## How it is structured

4812.00 is a six-digit subheading. Its first two digits, 48, are the chapter; the first four, 4812, are heading 48.12; the last two, 00, identify the subheading within the heading.

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

- Chapter 48: Paper and paperboard; articles of paper pulp, of paper or of paperboard
- Heading 48.12: Filter blocks, slabs and plates, of paper pulp
- Subheading 4812.00: Filter blocks, slabs and plates, of paper pulp

## In other countries

National tariff lines under 4812.00 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/481200): 1 line, used by 1 other country

- Previous subheading: [4811.90](https://border.bot/hs-codes/481190) Other paper, paperboard, cellulose wadding and webs of cellulose fibres
- Next subheading: [4813.10](https://border.bot/hs-codes/481310) In the form of booklets or tubes

## Frequently asked questions

### What does HS code 4812.00 cover?

HS code 4812.00 covers filter blocks, slabs and plates, of paper pulp.

### Which heading and chapter is HS code 4812.00 in?

HS code 4812.00 is in heading 48.12 (filter blocks, slabs and plates, of paper pulp) in chapter 48 (paper and paperboard; articles of paper pulp, of paper or of paperboard).

### Where are goods of heading 48.12 classified when 4812.00 doesn’t fit?

4812.00 is the only subheading of heading 48.12, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 4812.00?

National tariff lines under 4812.00 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/481200.json