Which regulations the exam tests

The CBLE is open book, so the exam is really a search problem: 80 questions, about three minutes each, somewhere in 19 CFR and the tariff schedule. Below is the map — every authority CBP's published answer keys cite, with the number of questions it has answered across 17 sittings.

The provisions that carry the exam

Provision	What it covers	Questions
19 CFR 111	Customs Brokers	135
19 CFR 141	Entry of Merchandise	90
19 CFR 152	Classification and Appraisement of Merchandise	70
ACE	CBP's electronic system of record for entry and cargo release	70
HTSUS General Rules of Interpretation	The six rules that decide where any good is classified	64
19 CFR 113	CBP Bonds	49
19 CFR 133	Trademarks, Trade Names, and Copyrights	47
19 CFR 146	Foreign Trade Zones	46
19 CFR 134	Country of Origin Marking	42
19 CFR 190	Modernized Drawback	40
19 CFR 10	Articles Conditionally Free, Subject to a Reduced Rate, Etc.	37
19 CFR 171	Fines, Penalties, and Forfeitures	36
19 CFR 24	Customs Financial and Accounting Procedure	35
19 CFR 12	Special Classes of Merchandise	30
19 CFR 159	Liquidation of Duties	29
19 CFR 132	Quotas	24
19 CFR 191	Drawback	22
19 CFR 165	Investigation of Claims of Evasion of Antidumping and Countervailing Duties	21
19 CFR 174	Protests	20
19 CFR 142	Entry Process	20
19 CFR 19	Customs Warehouses, Container Stations and Control of Merchandise Therein	19
19 CFR 102	Rules of Origin	15
19 CFR 163	Recordkeeping	15
19 CFR 18	Transportation in Bond and Merchandise in Transit	15
19 CFR 144	Warehouse and Rewarehouse Entries and Withdrawals	11

One count per question: a question citing three subsections of the same part counts once. Counted from CBP's published answer keys, 2018–2026.

Also cited

Authorities that answer fewer questions, or that are not CFR parts — tariff chapters, CBP directives and the systems documentation.

HTSUS Chapter 8516
HTSUS Chapter 8414
HTSUS Chapter 6214
CBP Directive 3530-00213
HTSUS Chapter 9812
HTSUS General Note 39
19 CFR 1438
19 CFR 1488
HTSUS Chapter 958
Prep of 7501 Instructions7
19 CFR 1457
HTSUS Chapter 617
HTSUS Chapter 697
19 CFR 1727
HTSUS Chapter 737

Tabs beat memory

Four authorities — 19 CFR 111, 19 CFR 141, 19 CFR 152, ACE — answer 365 of the 1,261 questions on record, 29% of everything CBP has asked. If your copy of the regulations opens straight to them, you have bought back minutes you would otherwise spend searching, and minutes are what the pass rate is made of.

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