ADRP1-02

Military Symbology Basics
Modifiers for Control Measures
3-19. Only chemical, biological, radiological, and nuclear events and contaminated areas have modifiers.
The remaining control measures use amplifiers.
Amplifiers for Control Measures
3-20. As with the framed symbols, the amplifier in a control measure provides additional information about
the icon being displayed. However, the location of the amplifiers for control measures varies and is dependent
on the control measure symbol being displayed. Because the location of amplifiers varies, there is no
standardized amplifier placement location for all types of control measures. Chapter 8 provides numerous
figures and tables that identify the location of amplifiers for each of the different types of control measures.
For multiple entries of the same type or similar information, the field number will be followed by a dash and
a number designating the second or more uses. For example, a from-to date-time group may use 16 for the
start time and 16-1 for the end time, or an airspace coordination area may use 3 to name an operational name
or designation for the airspace coordination area and use 3-1 for the unique alphanumeric designation that
identifies the unit establishing the airspace control area. Arabic numerals are normally used when showing
the unique designation of units. However, corps echelon units are identified with Roman numerals.
7 December 2015 ADRP 1-02 3-11