CA C-39 Roofing Contractor exam-day guide
CA C-39 Roofing Contractor · Prepare for the day ahead.
Your checklist
Valid, unexpired government-issued photo ID
Driver's license, state ID, passport, or military ID. The name on the ID must match the name on your registration. If your license is close to expiring, renew it before test day. Confirm the provider's exact ID requirements when you schedule.
Appointment confirmation / admission notice
Bring the confirmation email or letter showing your name, exam (C-39 Roofing trade exam), date, time, and test-center address. Confirm whether your provider requires a printed copy or accepts a screen image.
Test-center address, directions, and parking plan
Do a dry run or map the route in advance. Identify parking availability and any building-security check-in. Plan to arrive well before your start time (commonly 30 minutes; confirm with the provider).
Calculator policy understood before arrival
Roofing estimating questions may require arithmetic. Many computer-based testing systems provide an on-screen calculator and scratch materials. Confirm in advance whether a basic non-programmable calculator is permitted and whether it must be provided by the center. Do not bring a phone-based calculator into the room.
Pencils and scratch paper
Most test centers supply these at the workstation and prohibit bringing your own. Confirm the provider's policy so you are not caught off guard at check-in.
Nothing that looks like study material
Leave notes, flashcards, code books, printed guides, and reference sheets in the car or at home. The C-39 trade exam is closed book. Confirm whether any reference material is displayed on-screen by the testing software.
Phone and smartwatch plan
Expect to store all electronics in a locker or your vehicle. Confirm the provider's rule on phones, smartwatches, earbuds, and fitness trackers before you arrive.
Comfort items for a multi-hour session
Layered clothing for variable room temperature, reading glasses, tissues, and any permitted medication. Ask the provider in advance about water and snacks, since food and drink are often not allowed at the workstation.
Backup transportation and a time buffer
Arrange a second way to reach the center and add at least 30–45 minutes of buffer for traffic, construction, and parking. Late arrival may cost you your seat and fee.
Illness and reschedule policy reviewed
Know how to reschedule or cancel and what notice is required, so a last-minute problem does not automatically forfeit your fee. Confirm the current policy with the provider.
Score-report and next-step plan
Know how results are delivered (typically at the end of a computer-based session) and how a pass or fail affects your license application. Confirm with CSLB or the provider how results are transmitted.
Last-minute content review done the day BEFORE, not the morning of
Focus on high-yield C-39 areas: steep- and low-slope roof systems, underlayment, flashing and roof penetrations, waterproofing, insulation and ventilation, material selection and estimating, tear-off and repair, and jobsite safety. Keep the morning of the exam low-stress and review-free.
Plan the day
Confirm your appointment date, time, and test-center address in writing. Re-check the provider's ID, calculator, electronics, and reschedule policies. Verify your ID is unexpired and the name matches your registration. Plan the route, parking, and backup transportation. Spend this window on targeted review of your weakest C-39 topics, plus the Law & Business material if you are taking both exams, and stop adding new material after this point.
Do a light review of summary sheets only - no cramming new topics. Pack your ID, confirmation, glasses, layers, and any permitted items in one place. Confirm childcare, work coverage, and your alarm. Avoid alcohol and heavy meals; get a normal night's sleep. Set two alarms and check traffic reports for the morning.
Eat a real breakfast and limit caffeine to your normal amount. Leave earlier than the map says. Arrive at the center with buffer time, use the restroom before check-in, and store your phone and other electronics as directed. At check-in, present your ID and confirmation, follow the proctor's instructions exactly, and take a few slow breaths before the first question.
Read the full question and every option before answering; watch for words like 'minimum,' 'not,' and 'except.' Answer the questions you know first and flag long calculation or code questions to return to. For estimating items, write your steps on the scratch material so you can check units (squares, bundles, squares of shingles at three bundles per square, roll coverage, fasteners per square). Eliminate obviously wrong options, then choose. If a question stumps you, mark it and move on rather than burning minutes. Keep an eye on the clock and reserve the final minutes to make sure no item is left blank unless the provider says blanks are not penalized. Confirm that detail with the proctor or provider.
Rules to check
Bring a valid, unexpired government-issued photo ID whose name exactly matches your registration. If the name differs (for example, a recent marriage or legal name change), resolve it with CSLB or the provider before test day or you may be refused admission. Confirm the exact ID policy with the provider.
The C-39 trade exam is closed book. Do not bring notes, books, code references, printed guides, or written scratch aids into the testing room. Confirm with the provider whether any reference information is available on-screen during the exam.
Phones, smartwatches, earbuds, and other electronics must be turned off and stored as directed. Possession of an unauthorized device at the workstation can result in your session being terminated and your score voided. Confirm the provider's electronics policy in advance.
Testing-room conduct: no talking, no sharing materials, no writing on anything other than materials the center provides, and no leaving the room without proctor permission. Follow all proctor instructions; misconduct can end your session. Confirm the provider's specific conduct rules.
Breaks: confirm with the provider whether unscheduled breaks are allowed. In most computer-based testing, the clock keeps running during a break and you will be re-screened when you return, so budget your time accordingly.
Scoring: the trade exam is multiple-choice and computer-delivered, with results typically provided at the end of the session. Confirm the current passing score and whether unanswered questions count as incorrect directly with CSLB or the testing provider; do not rely on secondhand numbers.
Late arrival and rescheduling: admission after your start time is at the provider's discretion and may result in forfeiture of your fee. Confirm the late-arrival and reschedule/cancellation terms in writing before test day.
Your C-39 trade exam is only one requirement. Confirm with CSLB which exams and application steps you still need (for example, the Law & Business exam, fingerprinting, and application review) so a pass on this exam is not mistaken for a completed license.