not later than(NLT)
I was the worst typist ( lucky for me that wasn't my job ) in the Air Force, and even I knew you didn't explain acronyms. You either used just the acronym or expanded it, not both. If somebody didn't know what the acronym meant, tough. Note that later the "writer" doesn't expand "IAW". For those few who don't know that means "In Accordance With.
Night bump