Should Dutch government tenders be awarded on lowest price or on "true price" — the bid plus the priced-in externalities (CO₂, biodiversity loss, supply-chain labour conditions)? The question was on the agenda in the Tweede Kamer (Dutch House of Representatives), with proponents arguing it shifts procurement toward sustainable suppliers and critics arguing it adds opaque cost layers on top of public-money discipline. For FM suppliers to Dutch government (cleaning, catering, soft services), the practical question is which true-price methodology a procuring agency will adopt — and how to evidence it.