C45 Sign Exam


  1. Commit to passing your C45 Contractor exam. Prepare at HOME on your schedule; “Read, Listen, Watch, Learn, & PASS!”
  2. Order Our Course and Apply to the CSLB. We help you correctly fill out your Contractor License Application at no additional cost. Call us for assistance. “Spend Less and Pass Your Test.”
  3. Study. Our clients typically pass their exam on the 1st attempt!

All qualifying individuals must also pass the California Contractor Law & Business Exam (sold separately below)


* Shipping fees apply for the options not fully online.

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C-45 SIGN – (Trade Exam)

Pass the C-45 Sign exam on your 1st attempt. Unleash the most effective and affordable C-45 contractors’ license course available in California. Our clients pass their C-45 Contractor trade exam.

Pass your C-45 Sign Contractor exam; it’s as simple as 123!

ONE – Commit to becoming a C45 Sign Contractor, study for your exam at HOME on your schedule, Read, Listen, Watch, Learn, and pass!

  1. Read our best in the industry C45 Sign exam manual.
  2. Watch & listen as experts review Math & Health & Safety Rules
  3. Learn the art of dominating a four-question multiple-choice exam.
  4. PASS your C45 Sign Contractor exam.

The most effective C-45 contractor exam course available in California at ANY price!

\Study Online! Our multimedia Sign contractor course is your best, & most affordable method to pass your CSLB contractor license exam!

TWO – Apply to the CSLB. We will help! New online tools will help you complete your original C-45 Sign contractor exam application correctly. Fill out the form, call us for assistance, and schedule a free line-by-line review of your application before submission to the CSLB!

With our help, submitting a properly filled-out Sign Contractor application to the CSLB has never been easier!

THREE – Prepare for and pass your exam. Our students dramatically improve their test scores and pass the C45 Sign exam.

When ready to test, schedule your exam through PSI. Please read the PSI Candidate Information Bulletin for more information. PSI – C-45 Sign

IT’s A FACT! When you read something – eTEXTBOOKS, watch something – VIDEO FILES, hear something – AUDIO FILES, and then put that information to use – ONLINE PRACTICE QUESTIONS  & ONLINE EXAMS, your ability to retain our study materials increases exponentially!


Study at home! Don’t waste time commuting to a classroom. Study conveniently in your home or office. Our courses are a proven, reliable, and affordable way to pass the C-45 Sign Contractor exam.


Choose your course format from either

eCourse – Online Manual (not printable)Streaming A/V (Audio/Video), & Online Testing

Or Printed Manual + Online A/V (Audio/Video) & Online Testing

Or Printed Manual + CDs, DVD’s, & Online Testing

Our C-45 Sign Contractor License Trade Exam Course includes the following course materials to maximize your study efforts.

  • Trade Specific Textbooks
  • Audio Lectures
  • Video Lectures
  • Online Practice Questions
  • Simulated Online Exams


The C-45 Sign Contractor exam manual covers the essential topics of the California C-45 Sign Contractor license exam. Topics include Electrical Theory, summaries of UL 48 and the California Electrical Code, Title 8 Health and Safety Orders, and Sign Review Questions.

The C-45 Sign Contractor Study Guide contains the following sections;

  • MATH REVIEW: covers math and estimating formulas, units of measurement, elementary geometry, and the architect’s scale.
  • GENERAL KNOWLEDGE: This contains basic trade information all students must know to pass the C-45 Trade exam.
  • HEALTH AND SAFETY: Our comprehensive health and safety section familiarizes students with Cal/OSHA and other regulations and practices.
  • REVIEW QUESTIONS: Lists the most difficult questions, indexed to the relevant section of the manual.


Streaming online Audio/Video files or CDs & DVDs. Expert instructors with decades of experience cover fundamental C-45 Sign exam concepts in greater detail. Our audio/video lectures cover Math Formulas and Title 8 Health and safety lectures.


  • FLASHCARDS: Online flashcard program tracks your history and also allows you to exclude questions you have already learned.
  • PRACTICE EXAMS: One final practice exam, timed to simulate actual exam conditions. The course also includes two Cal/OSHA Health & Safety tests. (exams are approximately 100 questions each.) Our C-45 and Title 8 Health and Safety update list any new questions to reflect changing trends in exam focus.


Get help filling out your contractor exam application or request a free review of your completed form before submission. All students in our C-45 Sign course can call us at (866) 685 8564 for assistance.

ONE YEAR UNLIMITED ACCESS: To All Online eBooks, Audio/Video, Test Questions & Simulated Final Exams.

 We provide complete access to all online course materials for an entire year. Other schools may offer only 90-day access to online tools to charge you extra $ for extended access to study materials.


A detailed breakdown of the makeup of the C-45 Sign Contractor trade exam. A list of all the reference materials used to create the C-45 exam & the scope of the C-45 Sign contractor classification.

The C-45 Sign exam consists of five major sections:

Section 1. Planning and Estimation (29% of C45 Exam)

  • Sign criteria and codes
  • Plans and specifications
  • Sign engineering and design
  • Sign components
  • Electrical requirements
  • Material labor and equipment estimation

Section 2. Sign Design and Fabrication (22% of C45 Exam)

  • Sign patterns
  • Sign face fabrication
  • Channel and reverse channel letters
  • Sign cabinet fabrication
  • Sign assembly
  • Fluorescent, LED, and HID fabrication
  • Neon design and fabrication

Section 3. Installation (21% of C45 Exam)

  • Prewiring of sign electrical components
  • Excavation and concrete footings
  • Pole and monument sign installation
  • Building sign installation
  • Electrical connections

Section 4. Testing, Maintenance, and Troubleshooting (11% of C45 Exam)

  • Sign testing and troubleshooting
  • Sign repair and maintenance
  • Tools and equipment

Section 5. Safety (17% of C45 Exam)

  • Electrical hazards
  • Personal protective equipment
  • Cal/OSHA safety requirements
  • Hazardous materials
  • Working with cranes and ladders
  • Transportation and traffic control

*Percentages are approximate

C-45 Sign Exam source material:

The CSLB utilizes the following publications for the creation of the General Engineering exam. California codebooks can be viewed online: www.dgs.ca.gov/bsc

2022 California Building Code. Title 24. International Code Council.
PHONE: (800) 786-4452.
INTERNET: http://www.iccsafe.org

2022 California Electrical Code. (especially Article 600), Title 24. BNI Publications, Inc.
PHONE: (888) 264-2665
INTERNET: www.bnibooks.com

2022 California Energy Code. California Code of Regulations, Title 24. International Code Council.
PHONE: (800) 786-4452
INTERNET: www.iccsafe.org

CalDAG 2020: California Disabled Accessibility Guidebook, An Interpretive Manual and Checklist. Michael P. Gibbens.
PHONE: (800) 870-0900
INTERNET: www.iccsafe.org

California Vehicle Code. Department of Motor Vehicles.
INTERNET: leginfo.legislature.ca.gov/faces/codes.xhtml

Neon Installation Guide. Northeast States Sign Association.
PHONE: (800) 216-7446
INTERNET: www.neoninstallationguide.com

State of California General Industry & Electrical Safety Orders (Cal/OSHA) and State of California Construction & Electrical Safety Orders (Cal/OSHA). 2023. California Code of Regulations, Title 8. Mancomm.
PHONE: (877) 626-2666.
INTERNET: www.mancomm.com

Underwriters Laboratories (UL) 48: Standard for Electric Signs. Comm 2000.
PHONE: (888) 853-3503
INTERNET: www.shopulsandards.com

Underwriters Laboratories (UL) 2161: Standard for Neon Transformers and Power
 Comm 2000.
PHONE: (888) 853-3503
INTERNET: www.shopulsandards.com

*Publisher information is current as of 1/23

Official CSLB Description of Duties for a C-45 Sign Contractor.

California Code of Regulations Title 16, Division 8, Article 3. Classifications

A sign contractor fabricates, installs, and erects electrical signs, including the wiring of such electrical signs and non-electrical signs, including but not limited to post or pole-supported signs, signs attached to structures, painted wall signs, and modifications to existing signs.

Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)



We offer our study materials as two separate courses:

  • Course-1: C-45 TRADE EXAM.
  • Course-2: LAW & BUSINESS EXAM. (Each Sold Separately)


Pass the Law & Business Exam

Pass the Law & Business Exam for Your Original Contractor’s License

  • Law & Business Exam Focus: This exam concentrates on California Contractor Law and best business practices.
  • Path to Success: To qualify for your first contractor’s license, you must pass both the TRADE and LAW exams. Utilize our resources to “Read, Watch, Listen, Learn, and PASS!”

Prepare for both exams to ensure you meet all the requirements for your original contractor’s license. With the right resources and study habits, you’re on your way to becoming a licensed contractor.


* Shipping fees apply for the options not fully online.

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Take a free C-45 Sign practice test. These free C-45 trade exam questions are similar to the ones you will encounter when taking the actual C-45 contractors exam.

You are off to a strong start if you readily answer seven or more questions correctly without guessing.
However, if you miss three or more questions, you risk failing the TRADE portion of the C-45 Exam.

Welcome to your free C-45 Sign Exam

REQUIRED - Enter your email address to receive a printable copy of your test results.
Whose guidelines/specifications should be followed when determining load capacities for crane and lifting equipment?

When a sign is installed above areas accessible to vehicles, what is the MINIMUM vertical clearance required?

What is the largest space allowed by the California Electrical Code between the end of the electrode and the nearest tube support on a neon border tube?

What is the advantage of using aluminum instead of sheet metal to fabricate channel letters?

Which of the following materials should be used in the construction of an outdoor sign cabinet?

A contractor is required to run 197 feet of EMT to the location of the sign. How many pieces of EMT will be required?

When can a light fixture be used as a raceway?

What is the minimum clearance between electric-discharge tubing and the nearest surface at voltages over 7,500 volts?

How much cover is required for a trench in which wires are buried in metal conduit?

When a neon tube has less light at one end, what is most likely the problem?