Once plan was approved, the leader and all the partners work on his implementation in the respect for the community rules which come to drive them.

At the end of the selection procedure, the Managing Authority notifies the programming decision or the refusal to the Lead partner. The Lead partner informs all the partners who transmit the decision to the co-financing institutions.

For the accepted projects, the official implementation starts with the signature of the subsidy contract by the Lead partner of the project, in the name of all the partners, and the Managing Authority.

The ERDF convention defines the implementation conditions and the subvention's payment procedure. It sets the partners' obligations regarding the carrying out of the project, the financial and physical monitoring and the publicity. It also indicates the services responsible for the expenditures certifying and the operation control.
Each partner has to keep the project account concerning his own activities in the project. The partner send to the auditor (private or public) the expenses of the project with the invoices.

Lead partner is a particular status, with some major financial and legal obligations:

• He represents all the partners in regard to the Managing Authority, the Certifying Authority, the Joint Technical Secretariat, the Member states and the European Commission,

• He is the beneficiary of the ERDF subventions and signs the subsidy contract with the Monitoring Authority,

• He is responsible for the coordination, the realisation and the financial monitoring of the project,

• He commits himself to respecting the partnership agreement signed with each partner,

• He assembles all the payment claims with certified expenses of the partners, proceeds to the ERDF credits payment requests and transfers the due part of subvention to each partner, in the shortest time-limit,

• He assumes the project's global accountancy and collects all the financial documents, checking that every partner holds a book-keeping regarding his participation in the project,

• He keeps available for the Commission, the Monitoring Authority or the national institutions all the documentation concerning the project implementation, up to three years after the payment,

• He accepts the control of the European services and of the administrations co-financing the project concerning its implementation and the use of the subvention allocated.

The Lead partner also commits himself to taking in charge the project information and publicity, according to the regulations (EC) n° 1083/2006 and 1828/2006.
All the partners have the obligation to account for their expenditures.

Each partner certifies its expenses with a registered auditor according to the national regulation.
The Lead Partner assembles the declarations and sends them to the MA / JTS.

The Managing Authority, assisted by the JTS, receives the certified declarations, checks and sends them to the Certifying Authority.
The Certifying Authority, after verification, proceeds to the payment of the ERDF subventions to the Lead Partner.
The Lead Partner redistributes the subventions to the partners, according to the payment claims.

The frequency of the reimbursing periods has still to be defined but should be at least semestrial.

The measures concerning the modalities of the modification of the projects are not yet defined by the Monitoring Committee.

The information available here can evolve and changes can occur.

With some minor modifications, informing the Joint Technical Secretariat is sufficient (normally the budget lines transfers inferior to 10% of the global amount .

For any major modifications, such as the addition or suppression of a partner or the change of budget lines concerning more than 10% of the budget, a preliminary request has to be submitted to the JTS for agreement of the Monitoring Committee.