CERN issues two types of invoices : periodic (automatic) invoices and requests for funds (RFF):

• Periodic invoices are used for Third-Party Accounts which work on a reimbursement scheme, i.e. CERN advances the funds and the Institution account holder reimburses by paying the invoices. They are generally used for Visiting Research Team Accounts.
• Request for Funds are invoices generated manually through the RFF form in EDH. They aim at providing funds in advance to a Third-Party Account, and are generally used for Collaboration Accounts.

It is not authorized to transfer funds to a Third-Party Account without an invoice. Payment must be done by bank transfer and mention the invoice reference(s).

The FAP Department is the only entity entitled to receive revenue, to issue invoices (including “pro forma” invoices, except for duly authorized services), and to issue receipts (if needed).