Code of Federal Regulations > Title 48 > Chapter 1 > Part 4 - PART 4—ADMINISTRATIVE AND INFORMATION MATTERS

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Feb 11, 2026

4.000 - 4.000 Scope of part.

4.001 - 4.001 Definitions.

Subpart 4.1 [4.101 - 4.103] - Subpart 4.1—Contract Execution

Subpart 4.2 [4.201 - 4.203] - Subpart 4.2—Contract Distribution

Subpart 4.3 - Subpart 4.3 [Reserved]

Subpart 4.4 [4.401 - 4.404] - Subpart 4.4—Safeguarding Classified Information Within Industry

Subpart 4.5 [4.500 - 4.502] - Subpart 4.5—Electronic Commerce in Contracting

Subpart 4.6 [4.600 - 4.607] - Subpart 4.6—Contract Reporting

Subpart 4.7 [4.700 - 4.706] - Subpart 4.7—Contractor Records Retention

Subpart 4.8 [4.800 - 4.805] - Subpart 4.8—Government Contract Files

Subpart 4.9 [4.900 - 4.905] - Subpart 4.9—Taxpayer Identification Number Information

Subpart 4.10 [4.1000 - 4.1008] - Subpart 4.10—Uniform Use of Line Items

Subpart 4.11 [4.1100 - 4.1105] - Subpart 4.11—System for Award Management

Subpart 4.12 [4.1200 - 4.1202] - Subpart 4.12—Representations and Certifications

Subpart 4.13 [4.1300 - 4.1303] - Subpart 4.13—Personal Identity Verification

Subpart 4.14 [4.1400 - 4.1403] - Subpart 4.14—Reporting Executive Compensation and First-Tier Subcontract Awards

Subpart 4.15 - Subpart 4.15 [Reserved]

Subpart 4.16 [4.1600 - 4.1603] - Subpart 4.16—Unique Procurement Instrument Identifiers

Subpart 4.17 [4.1700 - 4.1705] - Subpart 4.17—Service Contracts Inventory

Subpart 4.18 [4.1800 - 4.1804] - Subpart 4.18—Commercial and Government Entity Code

Subpart 4.19 [4.1901 - 4.1903] - Subpart 4.19—Basic Safeguarding of Covered Contractor Information Systems

Subpart 4.20 [4.2001 - 4.2004] - Subpart 4.20—Prohibition on Contracting for Hardware, Software, and Services Developed or Provided by Kaspersky Lab

Subpart 4.21 [4.2100 - 4.2105] - Subpart 4.21—Prohibition on Contracting for Certain Telecommunications and Video Surveillance Services or Equipment

Subpart 4.22 [4.2201 - 4.2203] - Subpart 4.22—Prohibition on a ByteDance Covered Application

Subpart 4.23 [4.2300 - 4.2306] - Subpart 4.23—Federal Acquisition Security Council