The
ALJ decision is likely to be sent to the agency head for final decisionmaking, although
some agency rules may provide that the agency grant permission before it will be considered.
On review, the agency head has the full power to substitute his or her judgment for that of the
ALJ on all issues of law, fact, and credibility. The only exception will be that since the agency
did not see the witnesses, the agency is not in a position to make demeanor credibility
determinations.