Public Sector Contracts Act in Spain No. 9/2017:

This study focuses on two legal phenomena. On the one hand the public-private relationship in the field of contracting known as Public-Private Participation or Public-Private Partnership and on the other hand the regulation of each country of this institute phenomenon and/or standard contract. In this case the regulation that since 2007 has the Kingdom of Spain on the same until the new Public Sector Contracts Law No. 9/2017 which has only entered into force in March 2018 is addressed. It mainly analyses the regulatory evolution of the institute with particular emphasis on what has been its definitive elimination from the Spanish legal system with the disappearance of the list of public contracts of the new law already mentioned. The paper also focuses on the new provisions of the recent law where paradoxically characteristic elements of the eliminated standard contract have been incorporated. Therefore the aim is to determine how the current panorama in this area has been configured.This study focuses on two legal phenomena. On the one hand the public-private relationship in the field of contracting known as Public-Private Participation or Public-Private Partnership and on the other hand the regulation of each country of this institute phenomenon and/or standard contract. In this case the regulation that since 2007 has the Kingdom of Spain on the same until the new Public Sector Contracts Law No. 9/2017 which has only entered into force in March 2018 is addressed. It mainly analyses the regulatory evolution of the institute with particular emphasis on what has been its definitive elimination from the Spanish legal system with the disappearance of the list of public contracts of the new law already mentioned. The paper also focuses on the new provisions of the recent law where paradoxically characteristic elements of the eliminated standard contract have been incorporated. Therefore the aim is to determine how the current panorama in this area has been configured.