Exam-style questions
Multiple-choice practice matched to the C-46 solar trade exam format.
California CSLB · Classification C-46
Get your California C-46 solar license with trade-specific prep that stays online.
Self-paced exam prep for the California C-46 Solar Contractor trade exam, with optional Law & Business bundled into the same buying flow.
Focus
Solar trade
Trade-specific practice
Format
Self-paced online
No classroom scheduling
Bundle
Optional L&B
One checkout flow when needed
Practice photovoltaic, solar thermal, and safety scenarios, with instant rationales on every answer.
Choose 3 or 6 months of access and bundle Law & Business at a discount.
3 months access
Exam prep package
Access length
Expanded hints, follow-up questions, and help in your language when you need more context.
$20/mo
Total
$200.00
Renewal pricing (monthly)
Monthly renewal: $40.00/month ($60.00/month with AI Pro)
Renewal becomes available after your active access expires.
What you get
Practice built to feel like the exam, not a textbook.
Everything is oriented around the exams: how questions are phrased, what they test, and how to move quickly without losing accuracy.
Rationale on every answer
Short explanations connect each solar answer back to the why, including PV math.
Readiness tracking
See progress across PV installation, solar thermal, service, and safety before test day.
Any device, any time
Study from the office, truck, jobsite, or home on phone, tablet, or desktop.
About the exam
What to know before you start.
A quick confirmation so you know you're on the right prep page before you start.
Who this prep is for
This page is for California C-46 applicants who want solar trade-specific practice built around the official CSLB content outline, not a licensing school.
Topics at a glance
Exam
C-46 - Solar Contractor
Best fit
Solar PV and thermal installers with journey-level experience preparing for the California trade exam
Topic focus
Photovoltaic system installation and commissioning, solar panel and collector mounting, solar thermal, service and maintenance, planning and estimating, and safety
Content status
Question bank and official sources
We keep this prep tied to CSLB documents, current code editions, and the live Test2Pro question bank.
Question bank last updated: July 2026.
When a practice item depends on a code citation, we review it against the current edition listed for this exam.
CSLB sources
The Test2Pro content team keeps these sources current.
We re-check them each quarter and whenever CSLB publishes major guide changes.
Why this format
Built for working contractors, not classrooms.
Most candidates are fitting study around jobsites and workdays. The format reflects that.
Self-paced
Study around solar installs and service calls instead of reshaping your week.
Online, no scheduling
Open the prep bank anytime without live class times or a prep-center appointment.
Trade-focused practice
Stay close to the solar exam outline instead of broad school-style instruction.
Coverage
What's inside the prep bank
Review the live coverage breakdown below to see the solar trade sections this prep is built around, from photovoltaic installation and commissioning to solar thermal, service, and safety.
Live category coverage
Planning and Estimating
~200+ items
Solar Panel/Collector Installation
~67+ items
Photovoltaic (PV) System Installation and Commissioning
~100+ items
Solar Thermal Installation
~100+ items
Service, Operation, and Maintenance
~30+ items
Safety
~52+ items
Also required for most applicants
Add Law & Business when your application requires both exams.
CSLB generally requires qualifying individuals to pass Law & Business alongside the C-46 trade exam, and the bundle keeps both exams in one prep path.
Optional exam
Law & Business
Business organization, finances, employment, insurance, contracts, public works, and safety.
If you want it separately, See Law & Business prep
Trade-specific
Solar exam prep
Positioned around the California C-46 classification.
Self-paced
Online format
Built for working solar installers and contractor applicants.
3 or 6
Months of access
Choose the term that fits your timeline.
Optional L&B
Bundle when needed
Add the companion business exam in the same purchase flow.
"The diagnostic showed exactly where my C-10 prep was thin. I could focus my study blocks instead of rereading everything."
MR
Marcus R.
C-10 Electrical Candidate
Common questions
Before you start.
Is this built specifically for the C-46 solar trade exam?
Yes. It is positioned for California C-46 applicants who want solar trade-specific practice organized around the official CSLB content outline, which weights photovoltaic system installation and commissioning and safety most heavily, rather than generic contractor prep.
Do I need the Law & Business exam too?
Yes, generally. CSLB says applicants must pass both the Law & Business exam and the Trade exam, so many C-46 applicants bundle both. You can add Law & Business in the same purchase flow.
How many questions are on the C-46 exam, and what score do I need to pass?
CSLB does not publish a public question count or a numeric passing score for the C-46 exam. Passing candidates are simply told they passed. CSLB does allow 3.5 hours to complete each examination, and the trade exam is closed book and multiple choice with four answer choices.
Can I take the C-46 exam online?
No. CSLB says qualifying examinations must be taken in person at a PSI test center, and trade exams must be completed in California or Oregon. Test2Pro is online, self-paced prep you use before that in-person appointment.
Is Test2Pro affiliated with CSLB?
No. Test2Pro is an independent exam-prep platform and is not affiliated with, endorsed by, or an agent of CSLB.
Ready when you are
Start your C-46 solar prep today.
Choose the access length that fits your timeline, keep your prep online and self-paced, and add Law & Business when you need both exams covered together.