Skip to main content

An official website of the United States government

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.

  1. Home
  2. Newsroom
  3. Documents Library
  4. Summary of Changes (1991 Directive to 2024 Public Guidance)

Summary of Changes (1991 Directive to 2024 Public Guidance)

Last Modified: Feb 15, 2024