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Council Directive 90/531/EEC of 17 September 1990 on the procurement procedures of entities operating in the water, energy, transport and telecommunications sectors · European Union

However, a tender shall not be preferred to another pursuant to paragraph 3 where its acceptance would oblige the contracting entity to acquire material having technical characteristics different from those of existing material, resulting in incompatibility or technical difficulties in operation and maintenance or disproportionate costs.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.