id	description	section	req	max_loop	max_usage	pos
BTS	Beginning Segment For Train Sheets	H	M	0	1	1
V9	Event Detail	H	M	0	100	2
N9	Extended Reference Information	H	O	0	3	3
H3	Special Handling Instructions	H	O	0	5	4
FAC	Facing Direction	H	O	0	10	5
PWK	Paperwork	H	O	0	1	6
PER	Administrative Communications Contact	H	O	0	5	7
NM1	Individual Or Organizational Name	H	O	10	1	8
DTM	Date/Time Reference	H	O	0	3	9