309 U.S. Customs Manifest (Booking)
U.S. Customs and Border Protection (CBP) · X12 004010
U.S. Customs and Border Protection (CBP)’s published 309 specification, rendered as an interactive guide. Expand any segment to see its elements, data types, lengths and accepted codes — then validate your own document against it below.
Specification
15 of 15 segments
HEADING
ST
Transaction Set Header ST
pos 010
Optional
max —
M10
Manifest Identifying Information M10
pos 020
Required
max —
P4 Looprequired
P4
Us Port Information P4
pos 040
Required
max —
LX Looprequired
LX
Assigned Number LX
pos 060
Required
max —
M13
Manifest Amendment Details M13
pos 070
Optional
max —
M11
Manifest Bill Of Lading Details M11
pos 080
Required
max —
N9
Reference Identification N9
pos 085
Required
max 999
N1 Looprequired
N1
Name N1
pos 100
Required
max —
N3
Address Information N3
pos 110
Optional
max 2
N4
Geographic Location N4
pos 120
Optional
max —
PER
Administrative Communications Contact PER
pos 125
Optional
max —
VID Looprequired
VID
Conveyance Identification VID
pos 150
Required
max —
VC
Motor Vehicle Control VC
pos 155
Optional
max 21
N10 Loop
N10
Quantity And Description N10
pos 160
Required
max —
SE
Transaction Set Trailer SE
pos 200
Optional
max —
Validate a 309
Paste or upload a document and check it against U.S. Customs and Border Protection (CBP)’s published rules — segment order and repetition, required elements, field lengths, data types and accepted codes. Nothing is stored.
Go live on U.S. Customs and Border Protection (CBP)’s 309 in days, not months
Weredi maps this guide to your ERP, runs the test cycle with U.S. Customs and Border Protection (CBP), and keeps the spec current as it changes.