Article 1309 states that
The determinaion of the performance may be left to a third person, whose decision shall not be binding until it has been made known to both contracting parties
Determination of performance by 3rd person
The determination of its performance may be left to a 3rd person ___________
In such case, the obligation does not depend upon a protestative condition
Determination of performance by 3rd person
The decisions, however, shall bind the ____________
parties only after it has been made known to them