231 Cross Reference Type Code
TYPE=ID MIN=1 MAX=1
Code defining relationship of equipment to equipment cross-referenced
A Additional Equipment for Manifest Billing
B Basket Attached to Chassis (to hold generator set)
C Prior Load Credit
D Chassis Attached to Container
F Conveying Flat Car
G Reference to Lead Equipment for Manifest Billing
H Generator Set
K Clip-on Front-Mounted Generator Unit For Container
L Lead Car
M Mated
N Cryogenic Apparatus
R Tractor
S Saddle to Conveying Flatcar
T Trailer
X Transfer Load