4.
In procedures for awarding supply or service contracts, contracting authorities/entities which have authorised variants may not reject a variant on the sole ground that it would, if successful, lead either to a service contract rather than a supply contract, or to a supply contract rather than a service contract.
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Source: EUR-Lex (Cellar) · retrieved 2026-10-11 · Text as adopted (Official Journal); later amendments are not incorporated in this text.