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.