Final rule · 2026-13764

Conformance of Cost Accounting Standards to Generally Accepted Accounting Principles for Cost Accounting Standards 404, 408, 409, and 411

The Office of Management and Budget (OMB), Cost Accounting Standards Board (the Board), is publishing a final rule wholly rescinding Cost Accounting Standards (CAS) 408 and 411 and rescinding most provisions of CAS 404 and 409 to conform to Generally Accepted Accounting Principles (GAAP). The remaining content from CAS 404 and 409 is transferred to a different location within the Code of Federal Regulations. This final rule follows issuance of a Notice of Proposed Rulemaking (NPRM).