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VA Technical Reference Model v 26.1

macOS
macOS Technology

General Information

Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

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Description: macOS, previously OS X, is a Unix-based graphical interface operating system (OS) developed, marketed, and sold by Apple Inc. macOS`s core is a Portable Operating System Interface (POSIX) compliant Operating System (OS) built on the XNU kernel, with standard Unix utilities available from the command line interface. It is designed to run exclusively on Mac computer hardware.

Note: XNU is the computer operating system kernel developed at Apple Inc. since December 1996 for use in the macOS operating system and released as free and open source software as part of the Darwin operating system. XNU is an acronym for `X is Not Unix`.

The TRM decisions in this entry only apply to technologies and versions owned, operated, managed, patched, and version-controlled by VA. This includes technologies deployed as software installations on VMs within VA-controlled cloud environments (e.g., VA Enterprise Cloud (VAEC)). Cloud services provided by the VAEC, which are listed in the VAEC Service Catalog, and those controlled and managed by an external Cloud Service Provider (i.e., SaaS) are not in the purview of the TRM. For more information on the use of cloud services and cloud-based products within VA, including VA private clouds, please see the Enterprise Cloud Solutions Office (ECSO) Portal at: https://dvagov.sharepoint.com/sites/OITECSO
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information System Security Officer (ISSO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information: This technology has not been assessed by the Section 508 Office. The Implementer of this technology has the responsibility to ensure the version deployed is 508-compliant. Section 508 compliance may be reviewed by the Section 508 Office and appropriate remedial action required if necessary. For additional information or assistance regarding Section 508, please contact the Section 508 Office at Section508@va.gov.
Decision: View Decisions
Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v25.12
Decision Date: 12/22/2025 at 20:41:13 UTC
Aliases: Mac OS X, OS X
Introduced By: TRM Request
Vendor Name: Apple
Cage Code: N/A
- The information contained on this page is accurate as of the Decision Date (12/22/2025 at 20:41:13 UTC).