Entry / Entry Summary · CBLE study guide
Invoices & entry summary data (7501)
Commercial invoice contents, 7501 blocks and codes, MID, port and country codes.
- 51past questions in CBLE Pass
- ≈3questions on a typical 80-question exam
- 19 CFR 141.81-141.92; CBP Form 7501 instructionswhere the rules live
Common traps
Wrong answers on past exams cluster around a few beliefs. Here is each one, and what the rule actually says.
Entry summary header codes
“Any port in the district, or the cargo mode, can be reported.”
The rule: Report the actual entry type (for example 01, 02 or 23 for TIB), the Schedule D code of the port where entry is filed, and the mode of transport by which goods arrived (30 truck, 40 air, 60 passenger hand-carried, 11 vessel).
Remember: Check each code against the facts.
CBP Form 7501 Instructions · HTSUS Annex C (Schedule D)
Port codes
“Any nearby port code (or the code for the wrong district) can be used.”
The rule: Each U.S. port has its own four-digit Schedule D code (e.g. 0904 Oswego, 1803 Jacksonville, 2811 Oakland, 3701 Milwaukee); use the code for the port actually named.
Remember: Match the exact port.
CBP Form 7501 Instructions (02/26), Block 6/20
Reporting HTS units
“Report only one unit or per-dozen weight.”
The rule: When two units are shown, report both net quantities (e.g., doz. and total kg).
Remember: Both units, total quantities.
CBP Form 7501 Instructions
Surety codes 998 and 999
“999 means cash in lieu of surety or an unknown or missing bond.”
The rule: 999 means no surety, used when a bond is waived or not required; 998 means cash or government securities in lieu of surety.
Remember: 999 = waived; 998 = cash.
CBP Form 7501 Instructions (02/26)
Constructing the MID
“Canada uses CA or the province's postal abbreviation.”
The rule: For Canadian manufacturers the MID begins with the province code (e.g., XY for Yukon), then the first 3 letters of the first two words of the name, up to 4 numbers from the street address, and the first 3 letters of the city (7501 Instructions, Appendix 2).
Remember: Province code + name + number + city.
CBP Form 7501 Instructions, Appendix 2
ACE code tables
“Codes are intuitive abbreviations.”
The rule: CATAIR/7501 code values must be looked up: e.g., bulk liquid packaging code VL; T&E entry type 62; trade-fair entry type 24.
Remember: Look up the table.
CBP Form 7501 Instructions · ACE CATAIR Appendix B
Try a past question
October 2026 CBLE, question 49
A customs broker is preparing an ACE entry summary for merchandise arriving by truck. What should the broker report as the U.S. Port of Unlading?
Show the answer and why
A. Incorrect. For truck arrivals the field is left blank.
B. Incorrect. For truck arrivals the field is left blank.
C. Correct. Port of unlading is left blank for merchandise arriving other than by vessel, rail or air (CBP Form 7501 Instructions, Block 20).
D. Incorrect. No port is reported: for truck arrivals the port of unlading is left blank.
CBP Form 7501 Instructions (02/26) · law as of 2026-11-09
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