---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchN/part429"
level: "part"
label: "Part 429"
heading: "Timber Products Processing Point Source Category"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchN-part429"
sections_count: 115
---

# Part 429 — Timber Products Processing Point Source Category

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter N — Effluent Guidelines and Standards

## Sections

- [§429.10. Applicability.](/cfr/40/429.10.md)
- [§429.11. General definitions.](/cfr/40/429.11.md)
- [§429.12. Monitoring requirements. [Reserved]](/cfr/40/429.12.md)

## Contents

- [Subpart A — Barking Subcategory](/cfr/40/chI-subchN-part429-subpartA.md)
- [Subpart B — Veneer Subcategory](/cfr/40/chI-subchN-part429-subpartB.md)
- [Subpart C — Plywood Subcategory](/cfr/40/chI-subchN-part429-subpartC.md)
- [Subpart D — Dry Process Hardboard Subcategory](/cfr/40/chI-subchN-part429-subpartD.md)
- [Subpart E — Wet Process Hardboard Subcategory](/cfr/40/chI-subchN-part429-subpartE.md)
- [Subpart F — Wood Preserving—Water Borne or Nonpressure Subcategory](/cfr/40/chI-subchN-part429-subpartF.md)
- [Subpart G — Wood Preserving Steam Subcategory](/cfr/40/chI-subchN-part429-subpartG.md)
- [Subpart H — Wood Preserving—Boulton Subcategory](/cfr/40/chI-subchN-part429-subpartH.md)
- [Subpart I — Wet Storage Subcategory](/cfr/40/chI-subchN-part429-subpartI.md)
- [Subpart J — Log Washing Subcategory](/cfr/40/chI-subchN-part429-subpartJ.md)
- [Subpart K — Sawmills and Planing Mills Subcategory](/cfr/40/chI-subchN-part429-subpartK.md)
- [Subpart L — Finishing Subcategory](/cfr/40/chI-subchN-part429-subpartL.md)
- [Subpart M — Particleboard Manufacturing Subcategory](/cfr/40/chI-subchN-part429-subpartM.md)
- [Subpart N — Insulation Board Subcategory](/cfr/40/chI-subchN-part429-subpartN.md)
- [Subpart O — Wood Furniture and Fixture Production Without Water Wash Spray Booth(s) or Without Laundry Facilities Subcategory](/cfr/40/chI-subchN-part429-subpartO.md)
- [Subpart P — Wood Furniture and Fixture Production With Water Wash Spray Booth(s) or With Laundry Facilities Subcategory](/cfr/40/chI-subchN-part429-subpartP.md)