00       Original
01       Cancellation
02       Add
03       Delete
04       Change
05       Replace
06       Confirmation
07       Duplicate
08       Status
10       Not Found
11       Response
12       Not Processed
13       Request
14       Advance Notification
15       Re-Submission
16       Proposed
17       Cancel, to be Reissued
18       Reissue
19       Seller initiated change
20       Final Transmission
21       Transaction on Hold
22       Information Copy
24       Draft
25       Incremental
26       Replace - Specified Buyers Parts Only
27       Verify
28       Query
30       Renewal
31       Allowance/Addition
32       Recovery/Deduction
33       Request for Payment
34       Payment Declined
35       Request Authority
36       Authority to Deduct (Reply)
37       Authority Declined (Reply)
38       No Financial Value
39       Response to Proposed Trip Plan
40       Commitment Advice
41       Corrected and Verified
42       Temporary Record
43       Request Permission to Service
44       Rejection
45       Follow-up
46       Cancellation with Refund
47       Transfer
48       Suspended
49       Original - No Response Necessary
50       Register
51       Historical Inquiry
52       Response to Historical Inquiry
53       Completion
54       Approval
55       Excavation
56       Expiration Notification
5C       Chargeable Resubmission
77       Simulation Exercise
CN       Completion Notification
CO       Corrected
EX       Final Loading Configuration
GR       Granted
PR       Proposed Loading Configuration
RH       Release Hold
RV       Revised Loading Configuration
SU       Status Update
ZZ       Mutually Defined