Incorporate new PR template sections.

Author: lynnfaraday

.github/pull_request_template.md

@@ -1,12 +1,14 @@
 ## Description of Changes
 
-REPLACE THIS TEXT WITH A DESCRIPTION OF YOUR CHANGES
+> Briefly describe the change, including justification for the change, ramifications for not doing the change, and any specific versions/configurations impacted.
+
+TODO: REPLACE WITH YOUR DESCRIPTION
 
 ## Issue Link
 
 This PR addresses the following issues:
 
-- REPLACE THIS TEXT WITH A LIST OF ISSUES, if applicable
+- LINK TO RELEVANT ISSUES, IF APPLICABLE
 
 ## Security
 
@@ -17,6 +19,41 @@ This PR addresses the following issues:
 
 Describe briefly what security risks you considered, why they don't apply, or how they've been mitigated.
 
+## Change Control Board (CCB) Approval
+
+> CCB approval is required when the change affects organizational processes (like vulnerability management or disaster recovery), or has the potential to impact availability, security, or privacy. See the CR process for more detailed assessment guidelines.
+
+- [ ] This change does NOT require CCB approval.
+- [ ] This change DOES require CCB approval. Tag `@careevolution/ccb`.
+
+## Testing/Validation
+
+> Describe how we will know if the change is working as intended. Consider both pre-production testing and post-implementation validation, including environment/configuration details, if applicable.
+
+TODO: REPLACE WITH YOUR TESTING/VALIDATION PLAN
+
+## Backout Plan
+
+> Describe how we will restore the system to its pre-change state if something goes wrong.
+
+TODO: REPLACE WITH YOUR BACKOUT PLAN
+
+## Implementation Notes
+
+> Describe any special considerations for implementing the change: scheduling constraints, down-time planning, if a co-pilot is needed, etc.
+
+TODO: REPLACE WITH IMPLEMENTATION NOTES
+
+## Documentation Updates
+
+> Describe any necessary updates. Consider both internal (wiki, checklists) and external (user guides, developer docs, customer communications) documentation.
+
+- [ ] This change has no documentation impact.
+- [ ] This change impacts external documentation (API docs, user guides). Tag `@careevolution/mdhd-docs` or `@careevolution/api-docs`.
+- [ ] This change impacts internal documentation (procedures, security plans, wiki). Tag the owner.
+
+TODO: REPLACE WITH A DESCRIPTION OF DOCUMENTATION UPDATES, if applicable
+
 ## Reviewers
 
 - [ ] I have assigned the appropriate reviewer(s).