Nine-Line, METHANE and SALUTE, Built Before You Transmit NINELINE
A nine-liner is a script, not a form: read in a fixed order to somebody writing it down in the dark. This holds the codes, names the lines left empty, and shows the words as they are spoken.
Which message
The lines
As it will be read out
What has gone out
Every message you marked as sent, with the time it was marked. This is the thing that answers “when did you pass that up” three weeks later.
Questions people ask about NINELINE