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Passumi is an independent study tool. It is not affiliated with, authorised by or endorsed by any exam organiser, including CBP, USPTO, SOCRA, ACRP, PRIM&R or the CSCA organisers.

© 2026 Passumi. A little practice. A little more confidence.
First 40% of every paper is free

Mock exams that feel
like exam day.

Sumi, your study companion

Full-length, timed practice for customs broker, clinical research and CSCA candidates. Find your rhythm. Understand your answers.

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Make yourself at home before exam day.Interface illustration · demonstration text, not a practice question
Passumi · Practice workspaceQuestion navigation · Timer
YOUR QUESTION WORKSPACE

Read. Choose. Flag. Keep going.

This illustration shows how a timed practice workspace is organised. Start a free test to see questions from the content library.

ARead the question and any shared material
BChoose one answer
CFlag a question to revisit
DReview your answers before submitting
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YOUR PROGRESS
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Answers save as you go. With the default timing setting, leaving pauses your session.

First 40% free

Pick your exam

Practice shaped around each exam’s length, timing and subject areas.

Trade compliance

U.S. Customs Broker License Examination

80 questions · 270 minutes

6 full mock exams + 10 CBP-released papers · 1,363 questions in the bank
First 40% freeExplore →
Patent

USPTO Registration Examination (Patent Bar)

100 questions · 360 minutes

Content is being prepared for release.
Coming soonExplore →
Clinical research

SOCRA Certified Clinical Research Professional

130 questions · 240 minutes

5 full mock exams · 1,172 questions in the bank
First 40% freeExplore →
Clinical research

ACRP Certified Clinical Research Coordinator

125 questions · 180 minutes

5 full mock exams · 907 questions in the bank
First 40% freeExplore →
Clinical research

PRIM&R Certified IRB Professional

Built around the exam,
not around a question dump

Built around the exam

Full-length papers with the question counts, timing and sections in our exam catalogue. Practise a sustained sitting, one answer at a time.

Understand why an answer works

Original questions include explanations tied to their source material. CSCA explanations focus on the method and key formula.

Give every attempt a purpose

Save your progress, flag questions and review your answers after submitting. Learn from the free portion before deciding what comes next.

Try the first 40% of any exam, free

Start in one click. Get to know the questions, the rhythm and your own starting point.

Step 1

Pick an exam

No account needed to begin. Choose an available paper.

Step 2

Answer the free questions

Every paper starts with a free 40%, rounded up.

Step 3

See where you stand

Submit to review the free portion. Your score covers only the questions available to you.

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Pay for the exam you are taking

Try the free questions today. Exam passes and single-paper credit unlocks are planned; prices will be announced before sales open.

Per-exam access options
ExamExam passOne paperAvailable practice
CBLE$99 / 6 mo$196 mocks + 10 CBP papers
USPTOComing soon—In preparation
CCRP$99 / 3 mo$195 mocks
CCRC$99 / 3 mo$195 mocks
ACRP-CP$99 / 3 mo$195 mocks
CIP$99 / 3 mo$194 mocks
CSCA Math$49 / 3 mo$1010 mocks
CSCA Physics$49 / 3 mo$1010 mocks
CSCA Chemistry$49 / 3 mo$1010 mocks
CSCA Chinese (Arts)$49 / 3 mo$103 mocks
CSCA Chinese (Science)$49 / 3 mo$103 mocks
All CSCA subjects$99 / 3 mo—Five subjects

Questions people ask first

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Where do the questions come from?

Our original questions are written from public regulations, guidelines and published subject outlines. CBLE also includes clearly labelled papers released by CBP. Learn more on our question-writing page.

How much can I try for free?

The first 40% of every available paper is free, rounded up to a whole question. That means 32 of 80 questions, 50 of 125, 52 of 130, or 20 of 48. No account is needed to begin.

What happens at the free limit?

The timer pauses at the free limit and your answers are saved. You can submit the free portion to review it. Full-paper access requires an eligible entitlement; paid plans are not on sale yet.

Are you affiliated with the exam organisers?

No. Passumi is an independent study tool. No exam organiser produces, authorises or endorses our practice material. A practice score does not guarantee an exam result.

130 questions · 180 minutes

4 full mock exams · 840 questions in the bank
First 40% freeExplore →
Study in China

CSCA practice exams

Five subjects · English and Chinese papers

Math, Physics, Chemistry and Chinese for Humanities or Sciences.
First 40% freeExplore →
Explore all exams, including ACRP-CP →