We're live: every paid bank starts with 3 days free · then $20/month · free-tier exams stay free.
LLICENA Practice tool Start free
CSLB · Arizona ROC · EN / ES / RU
A real exam question below — no sign-up

You know the work.
Now get the license.

The exam doesn't test your skills — it tests how the state words them. Study in the real exam format, ten minutes at a time on your phone. Stop building someone else's company.

Try your exam free → How much am I losing without a license?
  • 13,000+ practice questions
  • Real exam-style format
  • EN / ES / RU

Practice tool. No pass guarantee.

Contractor on a jobsite checking exam practice questions on a phone
a retake costs
PSI fee + 21 days

The 21-day wait between attempts is a CSLB rule. A month of practice costs less than one retry.

Choose your trade — try it here. One real practice question — free, no sign-up.
C-10 Electrical · Law & Business · C-20 HVAC · C-36 Plumbing · B General Building · C-33 Painting · B-2 Remodeling · C-8 Concrete · EPA 608 · OSHA Construction · Arizona SRE · C-46 Solar · C-39 Roofing · C-27 Landscaping · C-7 Low Voltage · C-16 Fire Sprinkler · NICET · Backflow · Asbestos ·
Try it right here

One real C-10 question. No sign-up.

Get it right — all you need is the format. Miss it — you'll see the breakdown people pay $20 a month for. Switch the language: that's the feature.

licena.us · C-10 · from the free sample

What it is

A tool against the exam — not a school.

◎

Exact exam format

Questions built the way CSLB and AZ ROC actually word them — not textbook paraphrase. Blocks of 100 questions, like the real sections.

文

Living Spanish and Russian

Written by people who know jobsite terms — not a translate button. Bilingual mode: the question in English, the breakdown next to it in your language.

⏱

10 minutes between jobs

Short sessions between orders. Progress saves itself. No 120-hour video courses.

$

$20 a month, cancel in one click

The first 3 days are free, no card. Not for you? Just don't renew — right from your cabinet.

Built for serious practice.

20examsCalifornia + Arizona
13,000+questionswritten from official sources
3languagesEN · ES · RU, side by side
100%of answers explainedwhy it's right — and why the rest aren't

Real product numbers. We don't publish a “pass rate” — there is no honest way to count one yet.

Honestly

People fail the CSLB exam over prep — not skills.

A 400-page textbook in institutional English

Only what the exam actually asks — in blocks of 100 questions

“The correct answer is B.” No idea why

A written breakdown of every option, with the source behind it

Translating questions on your phone and losing the meaning

One tap — the same question in Spanish or Russian, side by side

Walking into the exam hoping for luck

A timed mock exam first — you know your score before you book

What makes it different

Not memorizing answers. Understanding the trade.

1

The exam

Format, timer and questions built from the official CSLB / ROC topic lists. You know what's coming.

2

The trade

Every explanation says why it's done that way on the jobsite — not just “because the code says so”.

3

Code & math

References to NEC, CBC, OSHA and the formulas — plus calculators right inside the course.

4

Business & law

The Law & Business bank and a start-your-business guide are included with every account.

Do the math

How much are you losing every month without a license?

Build your own income scenario.

your rate now
$38 / h
hours per week
40 h
your rate with the license — set your target
$86 / h

The presets are editable examples, not statistics — a licensed contractor bids his own price. Set your own target with the slider.

now, per year
$76,000
with the license, per year
$172,000
difference
+$8,000 / mo

That's $96,000 a year that today gets billed by the GC — he invoices the client, not you.

Start at $0 →

The $20 subscription pays for itself in

The method

Three steps to your own license number.

01

Try the free sample

Open your exam and run the free sample — see the format and your level, no card required.

02

Drill blocks + your mistakes

Work through blocks of 100, then switch on the mistakes filter and hit exactly what cost you points.

03

Timed mock — then the real date

Same time limit, same difficulty. Walk in knowing your score — then pull permits under your own number.

What we cover

Find your exam.

Practice questions for the California licensing exams below — in English, Spanish, and Russian. If your exam is here, you can start today.

Now also in Arizona

Getting licensed with the Arizona ROC? Practice the Statutes & Rules Exam (SRE) — the exam every Arizona qualifying party takes — with our 500-question bank in EN·ES·RU: pick Arizona in your cabinet. Two free guides explain the path, and the nationwide certifications above (OSHA, EPA 608, NICET) stay free.

Create a free account to start Free-tier exams stay free · paid banks are $20/month each.
The cost of failing

A month of LICENA costs less than an hour with a tutor.

School / bootcamp course

prepaid package, English-only

hundreds of $
Exam retake

PSI fee per exam + a 21-day wait (CSLB rule)

fee + weeks
Private tutor

per hour

$ by the hour
LICENA

per month · cancel in one click

$20
Pricing

$20 a month. One retake costs more.

schools & video bundles

Hundreds of $

Prepaid packages, English-only, 120 hours of video nobody finishes.

licena · one exam
$20 / month
  • The full bank for your exam — 500 questions
  • A written explanation for every answer: EN · ES · RU
  • Timed mock exam, unlimited attempts
  • Official sources and calculators inside the course
  • 5 devices — phone in the truck, laptop at home
  • Free OSHA and EPA 608 banks — forever
Start 3 days free →

3 days free · no card needed · cancel in one click

School / bootcamp coursehundreds of $
Exam retakePSI fee + 21 days
LICENA$20 / mo
FAQ

Straight answers.

Is LICENA free?
Registration and the free-tier exams (EPA 608, OSHA, asbestos, NICET, backflow) are free. Every paid bank starts with a one-time 3-day free trial (no card), then $20/month — cancel anytime; your progress is never deleted.
Are these the real exam questions?
No. Questions are written from scratch in the format and difficulty of the real exam, based on official public sources — never copied from the actual exam.
What languages is it in?
The interface and study content are in English, Spanish and Russian, with a bilingual side-by-side study mode.
Is this just memorizing answers?
No. Every question is explained through the real situation behind it: why that answer, which code or formula stands behind it. You pass the exam and understand the trade deeper at the same time.
Will LICENA guarantee I pass?
No. LICENA is a practice tool, not a school, and does not guarantee passing. Real exams also draw on sources beyond our banks.
Which exams does it cover?
California licensing exams: CSLB Law & Business, the trade exams B, B-2, C-7, C-8, C-10, C-16, C-20, C-27, C-36, C-39 and C-46, plus EPA 608, NICET fire-alarm and water-based systems, backflow prevention, OSHA construction safety and asbestos.
i

This is a practice tool — not a school

LICENA gives you practice questions to study with. We are not an accredited school and we do not guarantee that you will pass any exam.

A license isn't paperwork.
It's your hourly rate.

A licensed contractor takes his own projects, his own price and his own schedule. Between you and that — one exam.

Choose my exam →

3 days free · no card · cancel in one click