The short version: study the way the exam is scored. Two thirds of the answers in CBP’s released exams sit in 19 CFR, about a fifth in the HTSUS and the rest in CBP’s entry summary guides. So learn where things live in those books, work every past exam CBP has released, then practise against the clock until you can find most answers in about 90 seconds. You get 4.5 hours for 80 questions, about 3 minutes 22 seconds each, and need 60 right.
What the exam rewards
The CBLE is open book: 80 multiple-choice questions, 4.5 hours, 75% to pass (CBP, General CBLE Information). Pass rates before appeals were 12% in October 2025, 22% in April 2026 and 13% in October 2026 (CBLE page). With the books open, the hard part is finding the right line in time, and reading it exactly.
Where the points are
We tagged every question in CBP’s six released exams (May 2024 to October 2026, 480 questions) with the book that holds CBP’s answer. The exams and keys are on CBP’s past exams page; our worked copies are under past exams.
| Where the answer is | Questions | Share |
|---|---|---|
| 19 CFR | 323 | 67% |
| HTSUS | 102 | 21% |
| CBP guides (ACE ES Instructions, BRPD, Right to Make Entry) | 45 | 9% |
| No single citation | 10 | 2% |
The 19 CFR parts cited most often across those 480 questions:
| Part | What it covers | Citations |
|---|---|---|
| Part 111 | Customs brokers: licensing, permits, duties, penalties | 104 |
| Part 141 | Entry of merchandise | 50 |
| Part 152 | Valuation | 47 |
| Part 190 | Modernized drawback | 30 |
| Part 24 | Fees, including MPF and HMF | 21 |
| Part 12 | Special classes of merchandise | 19 |
| Part 134 and Part 132 | Marking; quota | 17 each |
By topic, classification (15%) and broker compliance (14%) were the largest, then valuation (8%) and entry (8%). The topics page has the full list, each with its past questions. A question can cite more than one part, so the counts above add to more than 323.
A 15-week plan for April 28, 2027
CBP does not publish a recommended study time. This plan starts in mid-January, about 15 weeks before the expected April 28, 2027 exam. Registration opens about February 17 and closes about March 17; put the deadline in your calendar now.
Weeks 1 to 2: set up.
- Get the editions CBP is expected to name: the HTSUS 2026 Basic Edition and 19 CFR (2025 or 2026 edition). See references.
- Sit one past exam cold, timed, with the past exam sitting mode. Your score and the questions you could not find set the plan.
- Read how to search fast and the General Rules of Interpretation in the reference viewer.
Weeks 3 to 9: book by book.
- Take one or two topics a week, largest first: Part 111, classification, entry (Part 141), valuation (Part 152), drawback (Part 190), fees (Part 24), then the rest.
- For each topic, read the regulation’s table of contents first, so you know which section holds what. Then do its past questions and the lookup drills for it.
- Tab your paper books as you go. Tab what you actually look up, not every part.
- Do the classification walks twice a week. Classification is the largest single topic.
- Learn the fee arithmetic once, by hand: MPF, HMF, compound duty and drawback.
Weeks 10 to 14: full length, timed.
- One full exam a week under exam rules: 4.5 hours, paper books, no phone. Use the remaining past exams and the free mock exam.
- After each one, list every question you missed or ran out of time on, and why: wrong book, wrong section, or misread.
- Keep a paper tracking sheet of your answers as you go. The mock exam prints one.
Week 15: exam week.
- No new material. Redo the questions on your missed list.
- Pack and measure your crate, and check your ID against what to bring.
- Try CBP’s sample electronic exam once, so the screen is familiar. It “does not evaluate answers” and its search behaves differently from the real one (Registration Information).
Pace on the day
- Answer what you can find fast on a first pass. Flag the rest and come back.
- Budget about 3 minutes a question. A lookup that passes 5 minutes is costing you two other questions.
- Never leave a question blank. Since April 2026 you can only appeal a question you answered (How to Appeal).
- If you score 57 to 59, you may appeal up to four questions. Note your reasoning and citation on scrap paper as you go; see appeals.
If you sat it before
Start from your score report and your notes. Your retake is a new sitting: register and pay $390 again (CBP broker FAQ). Work the newest released exam first; CBP releases each one within about two weeks of the exam.
Sources checked November 15, 2026. The counts come from our own tagging of CBP’s six released exams; every question page shows the citation it was counted under.