An individual that you designate in writing to represent you.

a representative of the FAA Administrator authorized by law to examine, test, and/or make inspections necessary to issue airman or aircraft certificates

A person, such as a Teaching Assistant, that is given permission by an Instructor of Record to have access to OCA in a specific class (unique number).

A person that has been appointed to a statutory post to serve in his or her place during an absence.

an individual at the executive level, reporting directly to the agency head, to whom are designated affirmative action duties.

See " Designated Agent"