# HS code 4810.31: Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes, bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less > HS code 4810.31 covers kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes, bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less. It sits in heading 48.10 (paper and paperboard, coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and with no other coating, whether or not surface- coloured, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size) in chapter 48 (paper and paperboard; articles of paper pulp, of paper or of paperboard). Other goods of heading 48.10 are classified under 4810.13 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in rolls), 4810.14 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in sheets with one side not exceeding 435mm and the other side not exceeding 297mm in the unfolded state), 4810.19 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, other), 4810.22 (paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process, light-weight coated paper) or 5 others. National tariff lines under 4810.31 are live on border.bot for the United States (6 lines, also used by 1 other country). Source: https://border.bot/hs-codes/481031 Last updated: 11 October 2026 [HS codes](https://border.bot/hs-codes) / [Chapter 48](https://border.bot/hs-codes/48) / [48.10](https://border.bot/hs-codes/4810) / [4810.31](https://border.bot/hs-codes/481031) ## Key facts - HS code: 4810.31 - Covers: Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes, bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less - Heading: [48.10: Paper and paperboard, coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and with no other coating, whether or not surface- coloured, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size](https://border.bot/hs-codes/4810) - 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 6 lines](https://border.bot/countries/united-states/hs-codes/481031) ## What this code covers HS code 4810.31 covers kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes, bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less. The legal text of the subheading is “Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes: Bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less”, read under “Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes”, in HS2022. ## What it doesn’t cover Other goods of heading 48.10 are classified under 4810.13 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in rolls), 4810.14 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in sheets with one side not exceeding 435mm and the other side not exceeding 297mm in the unfolded state), 4810.19 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, other), 4810.22 (paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process, light-weight coated paper) or 5 others. - [4810.13](https://border.bot/hs-codes/481013) Paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres: In rolls - [4810.14](https://border.bot/hs-codes/481014) Paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres: In sheets with one side not exceeding 435mm and the other side not exceeding 297mm in the unfolded state - [4810.19](https://border.bot/hs-codes/481019) Paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres: Other - [4810.22](https://border.bot/hs-codes/481022) Paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process: Light-weight coated paper - [4810.29](https://border.bot/hs-codes/481029) Paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process: Other - [4810.32](https://border.bot/hs-codes/481032) Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes: Bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing more than 150 g/m2 - [4810.39](https://border.bot/hs-codes/481039) Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes: Other - [4810.92](https://border.bot/hs-codes/481092) Other paper and paperboard: Multi-ply - [4810.99](https://border.bot/hs-codes/481099) Other paper and paperboard: Other ## How it is structured 4810.31 is a six-digit subheading. Its first two digits, 48, are the chapter; the first four, 4810, are heading 48.10; the last two, 31, 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 48.10: Paper and paperboard, coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and with no other coating, whether or not surface- coloured, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size - Within the heading: Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes - Subheading 4810.31: Bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less ## In other countries National tariff lines under 4810.31 are live on border.bot for the United States (6 lines, also used by 1 other country). - [United States](https://border.bot/countries/united-states/hs-codes/481031): 6 lines, used by 1 other country - Previous subheading: [4810.29](https://border.bot/hs-codes/481029) Paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process: Other - Next subheading: [4810.32](https://border.bot/hs-codes/481032) Kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes: Bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing more than 150 g/m2 ## Frequently asked questions ### What does HS code 4810.31 cover? HS code 4810.31 covers kraft paper and paperboard, other than that of a kind used for writing, printing or other graphic purposes, bleached uniformly throughout the mass and of which more than 95 % by weight of the total fibre content consists of wood fibres obtained by a chemical process, and weighing 150 g/m2 or less. ### Which heading and chapter is HS code 4810.31 in? HS code 4810.31 is in heading 48.10 (paper and paperboard, coated on one or both sides with kaolin (China clay) or other inorganic substances, with or without a binder, and with no other coating, whether or not surface- coloured, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size) in chapter 48 (paper and paperboard; articles of paper pulp, of paper or of paperboard). ### Where are goods of heading 48.10 classified when 4810.31 doesn’t fit? Other goods of heading 48.10 are classified under 4810.13 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in rolls), 4810.14 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, in sheets with one side not exceeding 435mm and the other side not exceeding 297mm in the unfolded state), 4810.19 (paper and paperboard of a kind used for writing, printing or other graphic purposes, not containing fibres obtained by a mechanical or chemi-mechanical process or of which not more than 10 % by weight of the total fibre content consists of such fibres, other), 4810.22 (paper and paperboard of a kind used for writing, printing or other graphic purposes, of which more than 10 % by weight of the total fibre content consists of fibres obtained by a mechanical or chemi-mechanical process, light-weight coated paper) or 5 others. ### Which countries’ tariffs list national lines under HS code 4810.31? National tariff lines under 4810.31 are live on border.bot for the United States (6 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/481031.json