# Maximum length of suboptions

The "normalized length", which is defined as the sum of the lengths of all
message IDs, plus the number of message IDs minus one, must not exceed 75.
This length is equivalent to the most compact specification possible, with
only a single delimiter separating suboptions and no unnecessary blank-padding
used. For example, the normalized length of

`PermitLangx(IKF1150I IBM-E,IGY-E )`

is 20. This value is calculated as follows: The total number of characters
in the message IDs is 8 + 5 + 5 = 18. Since 3 message IDs were specified,
the total "normalized length" becomes 18 + 3 - 1 = 20.