# Revision History

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See individual department DDGs for more information about the revision history of their versions, including effective date, author, and a brief description of changes.
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## DDG Template Edition History Summary

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See [Appendix J](/ddg/appendix/22.-appendix-j-calhhs-ddg-template-development-and-revision-history.md) for the DDG Template’s full development and revision history.
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<table><thead><tr><th width="122" align="center" valign="middle">Edition</th><th width="143" align="center" valign="middle">Date</th><th width="194" align="center" valign="middle">Primary Author</th><th align="center" valign="middle">Brief Description of Changes</th></tr></thead><tbody><tr><td align="center" valign="middle">1.0</td><td align="center" valign="middle">9/23/16</td><td align="center" valign="middle">L. Scott, MD, MPH</td><td align="center" valign="middle">The First Edition was approved by CalHHS for implementation.</td></tr><tr><td align="center" valign="middle">2.0</td><td align="center" valign="middle">10/24/25</td><td align="center" valign="middle">D. Aggarwal, PhD</td><td align="center" valign="middle">The Second Edition was approved by CalHHS for implementation.</td></tr></tbody></table>


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