---
kind: "unit"
title: "48"
title_heading: "Federal Acquisition Regulations System"
key: "ch1/subchD/part23"
level: "part"
label: "Part 23"
heading: "Environment, Sustainable Acquisition, and Material Safety"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/48/ch1-subchD-part23"
sections_count: 38
---

# Part 23 — Environment, Sustainable Acquisition, and Material Safety

Title 48 C.F.R. — Federal Acquisition Regulations System › Chapter 1 — Federal Acquisition Regulation › Subchapter D — Socioeconomic Programs

## Sections

- [§23.000. Scope of part.](/cfr/48/23.000.md)
- [§23.001. Definitions.](/cfr/48/23.001.md)
- [§23.002. Policy.](/cfr/48/23.002.md)

## Contents

- [Subpart 23.1 — Sustainable Products and Services](/cfr/48/ch1-subchD-part23-subpart23.1.md)
- [Subpart 23.2 — Energy Savings Performance Contracts](/cfr/48/ch1-subchD-part23-subpart23.2.md)
- [Subpart 23.3 — Hazardous Material Identification, Material Safety Data, and Notice of Radioactive Materials](/cfr/48/ch1-subchD-part23-subpart23.3.md)
- [Subpart 23.4 — Pollution Prevention, Environmental Management Systems, and Waste Reduction](/cfr/48/ch1-subchD-part23-subpart23.4.md)
- [Subpart 23.5 — Greenhouse Gas Emissions](/cfr/48/ch1-subchD-part23-subpart23.5.md)
- [Subpart 23.6 - 23.10 — Subparts 23.6—23.10 [Reserved]](/cfr/48/ch1-subchD-part23-subpart23.6_-_23.10.md)