Both options are possible; note that it is sufficient for the coordinating host university to collect and keep on file all such declarations. A central, institution-wide archiving system can be used but is not a requirement.

Yes, but it should be borne in mind that the DFG will contact the host institution if it has any queries; the latter must then be able to produce the relevant declarations.

The last funding period means either the last period of regular funding or completion funding – the exact period is specified in the award letter. Please note: This does not include subsequent allowances for parental leave.

Yes, such declarations are to be kept for ten years after the submission of the draft proposal.

A Declaration of Obligation of Compliance must be obtained from these persons and kept on file at the host institution or at the employing institution.

Yes, new declarations must be obtained for each new phase.