text: Appendix D
  Table D-1. Description of main icon and amplifier fields for unit frames
  Field Field Title Description
  The innermost part of a symbol that represents the main function (main
  A Main and modifier icons
  icon) and its capabilities (modifiers 1 and 2).
  B Echelon A graphic amplifier in a unit symbol that identifies command level.
  C Quantity A text amplifier that identifies a specific number and type of items.
  D Task force indicator A graphic amplifier that identifies a unit or activities symbol as a task force.
  A text amplifier in a unit symbol that displays (+) for reinforced, (-) for
  Attached and detached
  F reduced, (+) reinforced and reduced.
  (reinforced or reduced)
  Note: A maximum of 3 characters are allowed in this field.
  A text amplifier for units, equipment, and installations; content is
  G Staff comments implementation specific.
  Note: A maximum of 20 characters are allowed in this field.
  A unique alphanumeric designation that identifies the unit being displayed.
  H Additional information
  Note: A maximum of 20 characters are allowed in this field.
  A text amplifier for units, equipment, and installations that consists of a
  single-letter reliability rating and single-digit credibility rating.
  Reliability Ratings:
  A–completely reliable.
  B–usually reliable.
  C–fairly reliable.
  D–not usually reliable.
  E–unreliable.
  J Evaluation rating F–reliability cannot be judged.
  Credibility Ratings:
  1–confirmed by other sources.
  2–probably true.
  3–possibly true.
  4–doubtfully true.
  5–improbable.
  6–truth cannot be judged.
  Note: A maximum of 2 characters are allowed in this field.
  A text amplifier for units and installations that indicates effectiveness.
  The entries are—
  Fully operational (FO).
  Substantially operational (SO).
  K Combat effectiveness
  Marginally operational (MO).
  Not operational (NO).
  Unknown (UNK).
  Note: A maximum of 5 characters are allowed in this field.
  A text amplifier for units that indicates number or title of higher echelon
  M Higher echelon formation command (corps are designated by Roman numerals).
  Note: A maximum of 5 characters are allowed in this field.
  Identification, friend or A text amplifier displaying one or more identification, friend or foe, or
  foe selective identification feature, identification modes and codes. Display
  P
  Selective identification priority is mode 5, mode 4, mode 3, and mode 2.
  feature Note: A maximum of 15 characters allowed in this field.