If a Principal Investigator (PI) or other employee leaves the university, who should certify his/her effort?

When possible, a PI should certify his/her own effort at termination. An individual effort report can be generated on demand. If it is not possible to get the PI's certification, a person with first-hand knowledge or a suitable means of verifying the effort should certify. If the PI is a faculty member, the certifier must be someone up the faculty chain of command, and should use the available documentation (e.g. progress reports, logs, task checklists) as the suitable means of verifying the effort. For a PI, an appropriate certifier would generally be the Department Chair or Dean or equivalent.