The purchaser may use a notice referred to in Article R. 2131-1 to issue an invitation to tender for contracts for social services and other specific services mentioned in 3° of Article R. 2123-1 when the estimated value of the need is equal to or greater than the European threshold applicable to these contracts, which is set out in a notice annexed to this Code.
In this case, the notice mentioned in article R. 2131-1 must meet the following conditions:
1° Make specific reference to the types of services that will be the subject of the contracts to be awarded;
2° Indicate that the contracts will be awarded without further publication and invite interested economic operators to express their interest in writing.