User volume header labels (UVL1 through UVL9)

The user volume header labels are optional. If used, they must have the following format:

Format

Position	Field name	Length	Contents
1 – 3	Label identifier	3	UVL
4	Label number	1	Digits 1 through 9.
5 – 80	Reserved for the installation	76	There are no conventions or restrictions with regard to the recording and contents of this field.

BS2000 supplies the user with the user volume header labels.