- CA-CO refers specifically to the California Correctional Officer Written Exam administered by CDCR's Office of Peace Officer Selection.
- The current bulletin is exam code WY50-9662, dated May 19, 2026, weighted 100% on the written test.
- A passing score is 70 or greater on multiple-choice and/or true/false questions.
- CDCR reports a 79% pass rate, with results emailed within two business days.
What CA-CO Actually Means
CA-CO stands for the California Correctional Officer Written Exam, the standardized written test administered as part of the hiring process for correctional officers within the California Department of Corrections and Rehabilitation (CDCR). This is not a certification you earn once and carry between employers - it is a state civil-service examination tied to a specific bulletin, a specific exam code, and a specific hiring cycle. If you are researching "CA-CO" in the context of a corrections career in California, this written exam is the gateway assessment that determines whether your name goes on the eligibility list CDCR uses to fill Correctional Officer academy classes.
Because the acronym CA-CO is short and generic-sounding, it's worth being precise: this article, and every fact in it, refers only to CDCR's Correctional Officer Written Test process. For a broader orientation to the acronym itself, see What Is CA-CO? and CA-CO Meaning.
Who Administers the CA-CO Exam
The exam is administered by the California Department of Corrections and Rehabilitation, Office of Peace Officer Selection. This office manages the bulletin, the testing schedule, scoring, and the resulting eligibility lists used across CDCR institutions statewide. The current official bulletin governing this process is dated May 19, 2026, and carries the exam code WY50-9662.
Because CDCR periodically opens and closes recruitment based on staffing needs, it's important to check application status directly. As of this writing, CDCR marks Correctional Officer applications as temporarily closed. That doesn't mean preparation should pause - candidates who use closed windows to study tend to move faster once applications reopen. For a full breakdown of eligibility mechanics and timing, see CA-CO Requirements 2026: Eligibility, Prerequisites & How to Qualify and CA-CO Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Exam Format and Scoring
The CA-CO Written Test has exactly one weighted component: Domain 1 - Written Test, weighted 100%. There are no separate scored oral boards or physical components folded into this particular exam's score - those exist as separate steps in the broader hiring process, but the written exam itself stands alone as a single pass/fail gate based on your numeric score.
- Question format: multiple-choice and/or true/false
- Passing score: 70 or greater
- Weighting: 100% written test
- Results turnaround: official results emailed within two business days
- Reapplication: candidates who fail may reapply after 30 days
- Eligibility list duration: 24 months after passing
This single-domain structure makes CA-CO different from multi-part certification exams you may have encountered elsewhere. Every question you see contributes to the same overall score, so there's no "domain weighting strategy" to game - success comes down to broad, consistent competence across all the tested skill areas. For a deeper look at how this compares to other exam structures, read CA-CO Exam Domains 2026: Complete Guide to All 1 Content Areas.
Key Takeaway
Because the written test is 100% of your score, treat every content area as equally important - there's no domain you can afford to skip when preparing.
What the Written Test Measures
CDCR designed the CA-CO written exam to measure how candidates think and communicate under realistic correctional scenarios, not just what they've memorized. The stated cognitive targets are cognitive ability, situational judgment, reading comprehension, problem solving, and decision making. Underneath those broad targets, the actual scope of tested content includes:
Language and Communication Skills
Candidates must demonstrate command of standard written English under time pressure.
- Grammar and spelling accuracy
- Objective report writing conventions
- Clear, professional communication
Cognitive and Perceptual Skills
Several items test how quickly and accurately you process information rather than what facts you know.
- Basic arithmetic
- Names-and-faces memory recall
- Rapid reading and interpretation
Judgment and Decision-Making
These items simulate the kinds of choices correctional officers face on the job.
- Logical reasoning
- Following directions
- Disciplinary options
- Situation analysis
Notice how narrow, practical, and job-relevant this scope is compared to generic aptitude tests. There is no legal-code memorization, no advanced math, and no essay writing - it's about accuracy, speed, and sound judgment applied to short scenarios and passages. A detailed content breakdown with sample question styles is available in CA-CO Exam Domains 2026: Complete Guide to All 1 Content Areas, and if you're wondering how tough this actually is in practice, How Hard Is the CA-CO Exam? Complete Difficulty Guide 2026 walks through it candidate by candidate.
Who Can Sit for the CA-CO Exam
CDCR sets specific baseline requirements before a candidate can even schedule the written test. These are eligibility gates, separate from the content of the exam itself:
- Twelfth-grade equivalency (high school diploma or equivalent)
- At least 20 years old at the time of application, and 21 by appointment
- Legally authorized to work in the United States
- A law-abiding history
- Firearm eligibility
- Ability to pass drug screening
- Ability to pass physical fitness, background, vision, psychological, and medical components
- Valid California Class C driver license held by appointment
These requirements sit alongside - not instead of - the written test score. Passing the exam with a 70 or higher gets you onto the eligibility list, but appointment still depends on clearing the remaining components. A full eligibility walkthrough, including documentation tips, lives at CA-CO Requirements 2026: Eligibility, Prerequisites & How to Qualify.
What Happens After You Pass
Passing the written test places your name on an eligibility list, which CDCR uses to select candidates for the next steps in hiring - background investigation, medical and psychological evaluation, and physical fitness testing. That list remains active for 24 months, giving CDCR a full two-year window to reach out as academy classes fill.
If you don't clear the 70-point threshold on your first attempt, you're not locked out permanently. CDCR allows candidates to reapply after 30 days, which is enough time to review weak areas without losing momentum entirely. Understanding exactly what constitutes a passing performance - and how close a "borderline" score really is - is covered in CA-CO Passing Score 2026: Exactly What You Need to Pass.
Once selected, accepted candidates complete a 13-week Basic Correctional Officer Academy in Galt. This residential academy is where classroom knowledge from the written exam translates into physical training, tactics, and institutional procedure. The academy itself is a distinct phase from the written test, but strong report-writing and situational judgment habits built during exam prep tend to carry over directly into academy coursework. See CA-CO Training for what the academy experience actually involves.
Pay Tied to the CA-CO Process
Because CA-CO sits at the front of a state hiring pipeline, compensation is structured in two stages:
| Stage | Pay |
|---|---|
| During the 13-week academy | $25.84 per hour |
| After academy graduation (Correctional Officer) | $5,510 to $9,203 per month |
The range after academy reflects step increases and assignment differences across CDCR institutions. For context on how this pay compares across the broader career trajectory and what drives movement through the pay bands, read CA-CO Salary Guide 2026: Complete Earnings Analysis. If you're still weighing whether the process is worth pursuing given the current temporarily-closed application status, Is the CA-CO Certification Worth It? Complete ROI Analysis 2026 lays out the tradeoffs.
How to Prepare Efficiently
Since the entire CA-CO score comes from one written test, your prep time is best spent building consistent accuracy across all the listed content areas rather than deep-diving into any single topic. A simple way to structure this without wasting weeks on unrelated study techniques:
Language & Reading Foundations
- Grammar, spelling, and objective report-writing drills
- Timed rapid-reading passages with comprehension checks
Cognitive Speed Skills
- Basic arithmetic under time pressure
- Names-and-faces memory exercises
Judgment Scenarios
- Situation-analysis and disciplinary-options practice items
- Following-directions and logical-reasoning drills
Full Practice Runs
- Timed, full-length practice sessions mimicking the 70-point threshold
- Review missed items by content category, not just overall score
Because CDCR only reports the number of participants passing at a given threshold - not category-by-category breakdowns - the smartest move is to simulate real test conditions repeatedly rather than guess at which content area needs more attention. A structured walkthrough of this exact approach, including how many practice sessions candidates typically need, is in CA-CO Study Guide 2026: How to Pass on Your First Attempt. For a quick-reference version of every fact in this article, bookmark CA-CO Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Key Takeaway
Spend early weeks on skill-building (grammar, arithmetic, memory) and save the final week for full-length timed practice - the written test rewards consistency, not last-minute cramming.
You can start building that consistency right now by working through realistic timed questions on our CA-CO practice test platform, which mirrors the multiple-choice and true/false format used on exam day. Reviewing your missed answers after each session on the practice site is one of the fastest ways to close gaps before the 30-day reapplication window becomes relevant.
It's also worth understanding where you'll likely land statistically. CDCR reports that 79% of participants pass, which tells you the exam is achievable with reasonable preparation but not a rubber stamp. For a closer look at what that number means for your own study plan, see CA-CO Pass Rate 2026: What the Data Shows. And if you're curious what the entire process costs from application through academy, CA-CO Certification Cost 2026: Complete Pricing Breakdown breaks it down.
Frequently Asked Questions
CA-CO refers to the California Correctional Officer Written Exam, administered by CDCR's Office of Peace Officer Selection as part of the state's Correctional Officer hiring process.
No. It's a written exam tied to a specific bulletin and eligibility list. Passing places you on a list valid for 24 months, after which you'd need to reapply if not yet appointed.
You need a score of 70 or greater on the multiple-choice and/or true/false written test, which is weighted 100% of your overall exam result.
CDCR currently marks Correctional Officer applications as temporarily closed. Candidates should monitor CDCR's official channels for reopening while continuing to prepare.
You may reapply after 30 days. Use that window to review weak content areas - grammar, arithmetic, memory, and situational judgment - before attempting again.