1. Where contracting entities choose to set up a qualification system in accordance with Article 77, the system shall be the subject of a notice as referred to in Annex X, indicating the purpose of the qualification system and how to have access to the rules concerning its operation.

2. Contracting entities shall indicate the period of validity of the qualification system in the notice on the existence of the system. They shall notify the Publications Office of the European Union of any change in period of validity, using the following standard forms:

(a) where the period of validity is changed without terminating the system, the form for notices on the existence of qualification systems;

(b) where the system is terminated, a contract award notice referred to in Article 70.