---
kind: "unit"
title: "48"
title_heading: "Federal Acquisition Regulations System"
key: "ch25"
level: "chapter"
label: "Chapter 25"
heading: "National Science Foundation"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/48/ch25"
sections_count: 29
---

# Chapter 25 — National Science Foundation

Title 48 C.F.R. — Federal Acquisition Regulations System

## Contents

- [Subchapter A — General](/cfr/48/ch25-subchA.md)
- [Subchapter B — Acquisition Planning](/cfr/48/ch25-subchB.md)
- [Subchapter C — Contracting Methods and Contract Types](/cfr/48/ch25-subchC.md)
- [Subchapter E — General Contracting Requirements](/cfr/48/ch25-subchE.md)