Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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Term of Support

Definitions:

  The length of time for which the device will be supported by the manufacturer or supporting parties for such actions and materials as part replacements, software updates, vulnerability notices, technical support questions, etc.
Sources:
NISTIR 8259B