Informal
adjudication and other hearing decisionmaking processes may be found in the agency's
organic statute, either directly or by implication. These procedures may involve some form of
oral presentation, but they may also be limited to the exchanges on paper. Due process
requirements do not necessarily demand an oral hearing. The APAs often give the agency
discretion in rulemaking on whether oral or paper hearings can be used. Formal adjudication
usually provides for some oral presentations, but much of the evidence can be required to be
submitted in a nonmoral manner.