Advice for Statutory Justification
One of the key data points used during federal government workforce analysis is statutory requirements for job functions. In most manpower assessments, there's a filter to show which functions have statutes cited against them and which don't.
Make sure that you include statutory citations for your responsibilities and accomplishments as much as possible - in your 5-bulletin email, your reports to your supervisor, etc.
To find these citations, refer to the U.S. Code, available at https://uscode.house.gov/.
Since I'm most familiar with DoD, that's what I'll be focusing on here.
DoD overall:
Service specific:
- Army - 10 USC Subtitle A, Part V, Subpart B
- Navy/Marines - 10 USC Subtitle A, Part V, Subpart C
- Air Force/Space Force - 10 USC Subtitle A, Part V, Subpart D
- Reserve Components - 10 USC Subtitle A, Part V, Subpart E
Examples:
- If you support program acquisition, contracting, research and engineering, weapon systems development, and major systems: 10 USC Subtitle A, Part V - find your subpart and subsection here
- If you support the defense industrial base: 50 USC 55§4502 - full text of 50 USC 55 here
- If you support DoD military or civilian training: 10 USC Subtitle A, Part III - find your subsection here
***Sample bullet point**\*
Conducted risk management assessment for a major program. (10 USC§4212)
Note - you don't have to include specifics. Be vague on the critical info.
ETA - Additional resources in my comment here. The comments on this post also contain very useful information for those looking for specific citations.