It is referring to the number(s) that you must assign to your assessment area(s) in your software or the FFIEC software. Each AA in the filing gets a number and a description/name.
The 18 21 etc. are referring to space numbers on the line. Start at space 18, end at space 21, element is 4 spaces long.
Last edited by Kathleen B; 12/10/14 04:54 PM.