1 CFR 20.3 - Organization.
(a) Information about lines of authority and organization may be reflected in a chart if the chart clearly delineates the agency's organizational structure. Charts must be prepared so as to be perfectly legible when reduced to the size of a Manual page. Charts that do not meet this requirement will not be included in the Manual.
(b) Listings of heads of operating units should be arranged whenever possible to reflect relationships between units.
(c) Narrative descriptions of organizational structure or hierarchy that duplicate information conveyed by charts or by lists of officials will not be published in the Manual.