---
kind: "unit"
title: "31"
title_heading: "Money and Finance: Treasury"
key: "subtB/chVIII/part850"
level: "part"
label: "Part 850"
heading: "Provisions Pertaining to U.s. Investments in Certain National Security Technologies and Products in Countries of Concern"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/31/subtB-chVIII-part850"
sections_count: 59
---

# Part 850 — Provisions Pertaining to U.s. Investments in Certain National Security Technologies and Products in Countries of Concern

Title 31 C.F.R. — Money and Finance: Treasury › Subtitle B — Regulations Relating to Money and Finance › Chapter VIII — Office of Investment Security, Department of the Treasury

## Contents

- [Subpart A — General](/cfr/31/subtB-chVIII-part850-subpartA.md)
- [Subpart B — Definitions](/cfr/31/subtB-chVIII-part850-subpartB.md)
- [Subpart C — Prohibited Transactions and Other Prohibited Activities](/cfr/31/subtB-chVIII-part850-subpartC.md)
- [Subpart D — Notifiable Transactions and Other Notifiable Activities](/cfr/31/subtB-chVIII-part850-subpartD.md)
- [Subpart E — Exceptions and Exemptions](/cfr/31/subtB-chVIII-part850-subpartE.md)
- [Subpart F — Violations](/cfr/31/subtB-chVIII-part850-subpartF.md)
- [Subpart G — Penalties and Disclosures](/cfr/31/subtB-chVIII-part850-subpartG.md)
- [Subpart H — Provision and Handling of Information](/cfr/31/subtB-chVIII-part850-subpartH.md)
- [Subpart I — Other Provisions](/cfr/31/subtB-chVIII-part850-subpartI.md)