---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchI/part261"
level: "part"
label: "Part 261"
heading: "Identification and Listing of Hazardous Waste"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchI-part261"
sections_count: 92
---

# Part 261 — Identification and Listing of Hazardous Waste

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter I — Solid Wastes

## Contents

- [Subpart A — General](/cfr/40/chI-subchI-part261-subpartA.md)
- [Subpart B — Criteria for Identifying the Characteristics of Hazardous Waste and for Listing Hazardous Waste](/cfr/40/chI-subchI-part261-subpartB.md)
- [Subpart C — Characteristics of Hazardous Waste](/cfr/40/chI-subchI-part261-subpartC.md)
- [Subpart D — Lists of Hazardous Wastes](/cfr/40/chI-subchI-part261-subpartD.md)
- [Subpart E — Exclusions/Exemptions](/cfr/40/chI-subchI-part261-subpartE.md)
- [Subpart F-G — Subparts F-G [Reserved]](/cfr/40/chI-subchI-part261-subpartF-G.md)
- [Subpart H — Financial Requirements for Management of Excluded Hazardous Secondary Materials](/cfr/40/chI-subchI-part261-subpartH.md)
- [Subpart I — Use and Management of Containers](/cfr/40/chI-subchI-part261-subpartI.md)
- [Subpart J — Tank Systems](/cfr/40/chI-subchI-part261-subpartJ.md)
- [Subpart K-L — Subparts K-L [Reserved]](/cfr/40/chI-subchI-part261-subpartK-L.md)
- [Subpart M — Emergency Preparedness and Response for Management of Excluded Hazardous Secondary Materials](/cfr/40/chI-subchI-part261-subpartM.md)
- [Subpart N-Z — Subparts N-Z [Reserved]](/cfr/40/chI-subchI-part261-subpartN-Z.md)
- [Subpart AA — Air Emission Standards for Process Vents](/cfr/40/chI-subchI-part261-subpartAA.md)
- [Subpart BB — Air Emission Standards for Equipment Leaks](/cfr/40/chI-subchI-part261-subpartBB.md)
- [Subpart CC — Air Emission Standards for Tanks and Containers](/cfr/40/chI-subchI-part261-subpartCC.md)