Guideline
For EVMS, the material accounting system will provide for:
1) Accurate cost accumulation and assignment of costs to control accounts in a manner consistent with the budgets using recognized, acceptable, costing techniques.
2) Cost recorded for accomplishing work performed in the same period that earned value is measured and at the point in time most suitable for the category of material involved, but no earlier than the time of actual receipt of material.
3) Full accountability of all material purchased for the program including the residual inventory.
Interpretation