Historic Interface Control Documents

Current versions of the Interface Control Documents, along with explanations of each one, are on the Interface Control Documents page. Go there

This page provides older versions of GPS Interface Control Documents (ICDs) and Interface Specifications (ISs) for historical reference purposes.

The documents on this page are no longer active for new design.

Some links on this page lead to content in the Portable Document Format (PDF) and may require you to install PDF software. Get software

IS-GPS-200

Versions prior to Revision D were designated as ICDs.

IS-GPS-705

IS-GPS-800

ICD-GPS-240

ICD-GPS-870

The Air Force did not release the original ICD-GPS-870 to the public but did release a document comparing it with ICD-GPS-870A. Download 409 KB PDF

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