ocessing plan and agreement between the repository and the 
producer/depositor, the repository must provide the producer/depositor with progress reports 
at agreed points throughout the ingest process. Repository responses can range from nothing 
at all to predetermined, periodic reports of the ingest completeness and correctness, error 
reports and any final transfer of custody document. Producers/Depositors can request further 
information on an ad hoc basis when the previously agreed upon reports are ins