Who should sign the effort report?

All employees should certify their own effort reports, unless they are unable to do so, for example if they are no longer employed or cannot be reached in a timely manner.  If an employee cannot sign their own effort report, a supervisor or someone who could reasonably estimate their effort expended should sign the effort report on their behalf.  For student workers, effort reports can be certified by either the student or the PI or their supervisors.