Retention Period for Subcontractor data collected under 52.204-10

We're implementing the new FAR clause 52.204-10, Reporting Executive Compensation and First-Tier Subcontract Awards and we're wondering what the retention period would be for detailed information we collect from the subs.

Is it 4 years, if treated as PO Data under 4.705-3 -- Acquisition and Supply Records?

Thanks.