When a conceding authority concludes a contract intended to satisfy objectively indissociable needs which, on the one hand, come under the ordinary law of concession contracts provided for in Book I of this Part and, on the other hand, come under the special legal regime applicable to other concession contracts provided for in Book II of this Part or the special legal regime applicable to other public contracts provided for in Book V of Part Two, this contract is subject to the provisions applicable to its main purpose.
Where the main purpose of the contract cannot be objectively identified, the contract is subject to the ordinary law governing concession contracts set out in Book I of this Part.