Code specifying the requirement designator.
Type
String (AN)
Length
Max 3 / Min 1
Codes
<> 1
Conditional
Object is conditional.
<> 2
Mandatory
Object is mandatory.
<> 3
Optional
Object is optional.
<> 4
Floating
Object is floating, not at a pre-defined position within a message.
<> 5
Not used
Object is not used.
<> 6
Required
Object is required.
<> 7
Advised
Object use is advised.
<> 8
Not advised
Object use is not advised.
<> 9
Dependent
Object use is dependent upon an additional condition or criteria.
<> 10
Default value
Value to be used when no other value is specified.
<> 11
Preferred
The value is preferred.
