Direct answer: Art. 43 advance union notice + proof of service often decide “procedural lawfulness” even when the ground looks strong.
Method
Use parent tools: hierarchy badges · national/local matrix · decision trees · evidence pack. Outputs: configure · document · calendar · preserve · escalate.
Checklist
- [ ] Facts mapped to parent event
- [ ] National vs local variable identified
- [ ] Documents listed / gaps flagged
- [ ] Parent handoff pack completed