Article R2151-8 of the French Public procurement code
Purchasers may authorise the presentation of variants under the following conditions:1° For contracts awarded in accordance with a formalised procedure:a) Where the contract is awarded by a contracting authority, variants are prohibited unless otherwise stated in the contract notice or in the invitation to confirm interest;b) Where the contract is awarded by a contracting entity, variants are authorised unless otherwise stated in the contract notice or in the invitation to…