FAR Part 30 Cost Accounting Standards Administration

Part Federal Acquisition Regulation

Part facts

Citation: FAR Part 30
Type: Part
Last amended: 90 FR 41872 Effective Oct 1, 2025
Text as of: FAC 2026-01
Official text: acquisition.gov

Text from acquisition.gov. Federal Register history from the Federal Register's records of the rules that amended this part.

30.000 Scope of part
30.001 Definitions
Subpart 30.1 General
- 30.101 Cost Accounting Standards
- 30.102 Cost Accounting Standards Board Publication
Subpart 30.2 CAS Program Requirements
- 30.201 Contract requirements
- 30.202 Disclosure requirements
Subpart 30.3 Reserved
Subpart 30.4 Reserved
Subpart 30.5 Reserved
Subpart 30.6 CAS Administration
- 30.601 Responsibility
- 30.602 Materiality
- 30.603 Changes to disclosed or established cost accounting practices
- 30.604 Processing changes to disclosed or established cost accounting practices
- 30.605 Processing noncompliances
- 30.606 Resolving cost impacts
- 30.607 Subcontract administration

Federal Register history

Final rule	Published	Effective
Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds 90 FR 41872 · FAC 2025-06, FAR Case 2024-001	Aug 27, 2025	Oct 1, 2025
Federal Acquisition Regulation: Update to Title 10 Citations 87 FR 73894 · FAC 2023-01	Dec 1, 2022	Dec 30, 2022
Federal Acquisition Regulation: Revision of Definition of “Commercial Item”; Correction 86 FR 64407 · FAC 2022-01	Nov 18, 2021	Dec 6, 2021
Federal Acquisition Regulation: Revision of Definition of “Commercial Item” 86 FR 61017 · FAC 2022-01	Nov 4, 2021	Dec 6, 2021
Federal Acquisition Regulation: Removal of FAR Appendix; Correction 85 FR 72971 · FAC 2021-02	Nov 16, 2020	Nov 23, 2020
Federal Acquisition Regulation: Removal of FAR Appendix 85 FR 67613 · FAC 2021-02	Oct 23, 2020	Nov 23, 2020
Federal Acquisition Regulation: Modifications to Cost or Pricing Data Requirements 85 FR 40071 · FAC 2020-07	Jul 2, 2020	Aug 3, 2020
Federal Acquisition Regulation: Applicability of Inflation Adjustments of Acquisition-Related Thresholds 85 FR 27088 · FAC 2020-06 · Corrected May 18, 2020	May 6, 2020	Jun 5, 2020
Federal Acquisition Regulation; Technical Amendments 84 FR 19839 · FAC 2019-02	May 6, 2019	May 6, 2019
Federal Acquisition Regulation; Inflation Adjustment of Acquisition-Related Thresholds; Correction 80 FR 53753 · FAC 2005-83	Sep 8, 2015	Oct 1, 2015
Federal Acquisition Regulation; Inflation Adjustment of Acquisition-Related Thresholds 80 FR 38293 · FAC 2005-83	Jul 2, 2015	Oct 1, 2015
Federal Acquisition Regulation; Positive Law Codification of Title 41 79 FR 24192 · FAC 2005-73	Apr 29, 2014	May 29, 2014
Federal Acquisition Regulation; Revision of Cost Accounting Standards Threshold 77 FR 27550 · FAC 2005-59	May 10, 2012	May 10, 2012
Federal Acquisition Regulation; Disclosure and Consistency of Cost Accounting Practices for Contracts Awarded to Foreign Concerns 76 FR 14570 · FAC 2005-50	Mar 16, 2011	Mar 16, 2011
Federal Acquisition Regulation; Definition of Cost or Pricing Data 75 FR 53135 · FAC 2005-45	Aug 30, 2010	Oct 1, 2010
Federal Acquisition Regulation; FAR Case 2009-025, Disclosure and Consistency of Cost Accounting Practices for Contracts Awarded to Foreign Concerns 75 FR 34283 · FAC 2005-42	Jun 16, 2010	Jun 16, 2010
Federal Acquisition Regulation; FAR Case 2007-002, Cost Accounting Standards (CAS) Administration and Associated Federal Acquisition Regulation Clauses 74 FR 40467 · FAC 2005-36	Aug 11, 2009	Aug 11, 2009
Federal Acquisition Regulation; FAR Case 2006-004, CAS Administration 73 FR 54013 · FAC 2005-27	Sep 17, 2008	Oct 17, 2008
Federal Acquisition Regulation; FAR Case 2007-002, Cost Accounting Standards (CAS) Administration and Associated Federal Acquisition Regulation Clauses 73 FR 54011 · FAC 2005-27	Sep 17, 2008	Oct 17, 2008
Federal Acquisition Regulation; FAR Case 2005-027, FAR Part 30-CAS Administration 73 FR 10965 · FAC 2005-24	Feb 28, 2008	Mar 31, 2008
Federal Acquisition Regulation; Cost Accounting Standards Administration 70 FR 11743 · FAC 2005-01	Mar 9, 2005	Apr 8, 2005
Federal Acquisition Regulation; Applicability, Thresholds and Waiver of Cost Accounting Standards Coverage 66 FR 2136 · FAC 97-22	Jan 10, 2001	Jan 10, 2001
Federal Acquisition Regulation; Applicability, Thresholds and Waiver of Cost Accounting Standards Coverage 65 FR 36028 · FAC 97-18	Jun 6, 2000	Jun 6, 2000
Federal Acquisition Regulation; Administrative Changes to Cost Accounting Standards (CAS) Applicability 63 FR 9060 · FAC 97-04	Feb 23, 1998	Apr 24, 1998
Federal Acquisition Regulation; Editorial and Technical Changes To Conform the CFR to the Looseleaf Edition 62 FR 40236	Jul 25, 1997	Jun 30, 1997
Federal Acquisition Regulation; Application of Cost Accounting Standards Board Regulations to Educational Institutions 61 FR 18916 · FAC 90-38	Apr 29, 1996	Apr 29, 1996

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Quick answers

What is FAR Part 30?

FAR Part 30 is a part of the Federal Acquisition Regulation, titled "Cost Accounting Standards Administration".

When was FAR Part 30 last changed?

The most recent final rule on record is "Federal Acquisition Regulation: Inflation Adjustment of Acquisition-Related Thresholds" (90 FR 41872), published Aug 27, 2025 and effective Oct 1, 2025.

Are changes to FAR Part 30 proposed?

No proposed rule from the last 3 years is waiting on a final rule.

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