Can an agency re-use a training services contractor's handouts, videos?

Let's say an agency awards a contract to Acme to provide training services.  Acme will provide virtual training to Agency employees.  Acme does the training by doing live video webinars, giving a link to the training class attendee to download the training class handouts/PDFs, and after the class, Acme emails a link to the training class attendee so they can watch the video recording of the training for up to 30 days.  Also, Acme emails a link to the training class attendee so they can download short video recordings that are high quality production generic explainer video summaries of the training material.  After the training is over, the contract has expired, can the Agency re-use Acme's training materials, or would that be a copyright violation?  Can the Agency employees email Acme's PDFs to other Agency employees?  Also the links to the videos?