# Appendix D: Background/Supplementary Documentation (non-normative)

This appendix supplies background/supplementary documentation from working groups and task forces for interested readers, including but not limited to object plans, business/use cases, test plans, test results, background and best practice documentation. Last modified dates are included in parentheses.

- InfrastructureDelta3_6.pdf (6/14/2023)
- OpenAPI.zip (6/21/2023)
- PESCJSON.pdf (1/3/2023)
- scripts.zip (6/21/2023)