Material register
The material register is one of the few places where the physical state, the document state, and the settlement state must all agree at the same time. Material sitting in the yard without an approved material request is not material ready for installation — it is a risk.
Four states that must be kept apart
| State | Question it answers | Typical source of truth |
|---|---|---|
| Ordered | What was contracted with the supplier | Purchase order / contract |
| Delivered | What physically arrived | Delivery document |
| Approved | What may be installed | Approved material request |
| Installed | What ended up in the structure | As-built measurement and documentation |
Collapsing these four states into a single "quantity" column in a spreadsheet is the most common reason a material "is there" and still cannot be installed.
Related: approval workflow, as-built measurement.
Sources
The substantive basis of this text. Items marked as own practice do not come from a document — they are delivery experience that cannot be verified with a publisher.
- DocumentPKP Polskie Linie Kolejowe S.A.PFU (TOM III SWZ) (PKP PLK employer's requirements, in Polish) — „Protokoły wstępnej kwalifikacji materiałów” (stage-A material pre-qualification protocols) as an annex to the PFU (p. 118)
- DocumentGeneralny Dyrektor Dróg Krajowych i Autostrad / GDDKiA Oddział w KatowicachSTWiORB DM.00.00.00 (GDDKiA technical specification, in Polish), item 2 — materials, factory inspection, „Deklaracja Właściwości Użytkowych” (Declaration of Performance) (p. 23)
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