The PB-GAS is operated by:
• the users referred to in Article 2, paragraph 2.2 mm) of the PB-GAS Rules;
• the balancing users referred to in Article 2, paragraph 2.2 nn) of the PB-GAS Rules.

To be admitted to the PB-GAS, authorised users must have adequate experience and competence in the use of ICT systems and related security systems, or have employees or assistants with such experience and competence.
 
The applicant must:
 
1.   submit a participation application (Domanda di ammissione) in the format enclosed to the PB-GAS Regulations; if the applicant is an organisation, the application must be accompanied by: i. a declaration (under Decree of the President of the Republic no. 445 of 28 Dec. 2000) certifying the powers of representation of the signer of the application or other documents based on which GME will carry out a substantial equivalence evaluation; and ii. a copy of a personal identity document of the signer of the application;
2.   submit a participation agreement (Contratto di adesione) in the format enclosed to the PB-GAS Regulations, initialled on each page by the legal representative (if the applicant is an organisation); in the agreement, the contracting party must declare that he/she/it has understood the PB-GAS Regulations and that he/she/it accepts to be bound thereby without any condition or reservation.  
Upon admission, the applicant acquires the status of PB-GAS participant. Participants are entered into a List of PB-GAS Participants, created and held by GME in compliance with personal data privacy legislation.

PB-GAS participants are required to pay the applicable fees. The obligation to pay the  fees ceases only if the PB-GAS participant files a formal request of exclusion from the PB-GAS with GME.