- The Written Test is 100% of your score - one exam, no separate domain weighting to juggle.
- You need 70 or greater to pass; CDCR reports a 79% pass rate among participants.
- Applicants must be 20 at application, 21 at appointment, with 12th-grade equivalency.
- Failing the written test means a 30-day wait before you can reapply.
Quick Facts Snapshot
If you only have five minutes before test day, this section is your entire prep condensed. The California Correctional Officer Written Exam (CDCR) - referred to on this site as CA-CO - is administered by the California Department of Corrections and Rehabilitation Office of Peace Officer Selection. The current official bulletin is the May 19, 2026 Correctional Officer examination, code WY50-9662. Bookmark that code; it's how CDCR tracks your specific administration cycle.
| Item | Detail |
|---|---|
| Administering Body | CDCR Office of Peace Officer Selection |
| Bulletin Code | WY50-9662 (May 19, 2026 administration) |
| Exam Weight | Written Test = 100% of the exam score |
| Question Format | Multiple-choice and/or true/false |
| Passing Score | 70 or greater |
| Reported Pass Rate | 79% of participants |
| Results Timeline | Emailed within two business days |
| Retake Wait | 30 days after a failed attempt |
| List Eligibility | 24 months |
For a deeper breakdown of how this single-test structure compares to other public-safety exams, see the CA-CO Study Guide 2026, which walks through a full preparation timeline rather than just the highlights covered here.
Exam Structure at a Glance
Unlike certifications that split scoring across multiple weighted domains, CA-CO keeps things simple on paper: there is exactly one graded component, the Written Test, worth 100% of your examination result. That doesn't mean the content is narrow - it means everything you're tested on lands in a single sitting, using multiple-choice and/or true/false items.
The written test measures five broad abilities: cognitive ability, situational judgment, reading comprehension, problem solving, and decision making. If you want a full breakdown of how CDCR structures this single content area and why it's labeled as "1 domain" rather than several, the CA-CO Exam Domains 2026 guide maps out how each measured ability maps to specific question styles.
Eligibility Checklist
Before you even schedule a seat for the WY50-9662 administration, confirm you meet every baseline requirement. CDCR is strict about these - missing one late in the process can stall an otherwise strong candidacy.
Baseline Requirements
These apply regardless of how well you perform on the written test itself:
- Twelfth-grade equivalency (high school diploma or GED)
- At least 20 years old at the time of application, 21 at appointment
- Legally authorized to work in the United States
- A law-abiding history that clears background review
- Firearm-eligible under state and federal law
- Pass drug screening, plus physical fitness, background, vision, psychological, and medical components
- Hold a valid California Class C driver license by appointment
Note that CDCR currently marks Correctional Officer applications as temporarily closed, so double-check the official bulletin status before assuming you can submit immediately. For the complete eligibility breakdown with context on each requirement, see CA-CO Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Key Takeaway
Age, education, and license requirements are fixed - verify all of them before investing study hours, since no amount of written-test prep overrides a missed eligibility box.
What the Written Test Actually Covers
The written test's scope is broader than its "one domain" label suggests. CDCR's bulletin lists ten specific content areas candidates should expect to see represented in multiple-choice or true/false items:
Core Content Areas
- Grammar and spelling - correct usage in short passages and sentence-level checks
- Basic arithmetic - calculations without a calculator, often embedded in scenario math
- Names-and-faces memory - short-term recall of visual and identifying details
- Rapid reading and interpretation - extracting facts quickly under time pressure
- Communication - recognizing clear versus unclear written exchanges
- Objective report writing - identifying factual, bias-free reporting language
- Logical reasoning - sequencing, if-then patterns, and elimination logic
- Following directions - multi-step instructions applied precisely
- Disciplinary options - matching situations to appropriate institutional responses
- Situation analysis - judging the best course of action in realistic scenarios
Notice how many of these areas overlap with day-to-day correctional work rather than abstract test-taking skill. The names-and-faces memory items, for example, mirror the actual task of recognizing individuals inside a facility. Situational judgment and disciplinary-options questions echo real decisions officers make on a housing unit. This is a big reason the exam can't be crammed purely through vocabulary flashcards - it rewards candidates who think like working officers. A closer look at why this blend trips up unprepared candidates is available in How Hard Is the CA-CO Exam? Complete Difficulty Guide 2026.
Scoring, Retakes, and List Life
Passing means scoring 70 or greater on the written test. CDCR reports that 79% of participants pass, which tells you the bar is reachable with focused preparation but not a rubber stamp. For a data-driven look at what that pass rate implies about difficulty and preparation gaps, see the CA-CO Pass Rate 2026 breakdown.
Results are emailed within two business days of testing, so you won't be left waiting weeks to know where you stand. If you don't clear 70, you're not locked out for good - CDCR allows you to reapply after 30 days. That's a relatively short cooling-off period compared to many public-safety exams, but it still means lost time if you're not ready the first time.
Key Takeaway
Once you pass, your name stays on the eligibility list for 24 months. Plan your background, psychological, and medical components within that window so the clock doesn't reset your progress.
For the exact score mechanics, including how the 70-point threshold is applied across question types, read CA-CO Passing Score 2026: Exactly What You Need to Pass. And if you're mapping out when the next administration windows open beyond the May 19, 2026 date, the CA-CO Exam Dates 2026 guide tracks scheduling patterns.
Academy and Pay Snapshot
Passing the written test is the gateway, not the finish line. Accepted candidates move into a 13-week Basic Correctional Officer Academy in Galt. This is where physical training, tactics, and institutional procedure get layered on top of the cognitive skills the written test already confirmed you have.
| Stage | Pay |
|---|---|
| During Academy | $25.84 per hour |
| After Academy (monthly range) | $5,510 to $9,203 per month |
These figures come directly from current CDCR pay information and give you a realistic sense of what clearing the written test and academy actually leads to. For a full analysis of how this pay scale compares across steps and tenure, check the CA-CO Salary Guide 2026. If you're still weighing whether the process - application freeze included - is worth pursuing right now, Is the CA-CO Certification Worth It? covers the trade-offs in more depth, and CA-CO Certification Cost 2026 covers what the process costs beyond just your time.
A One-Week Cram Schedule
Because the CA-CO written test has only one graded component, your prep doesn't need domain-by-domain weighting - it needs coverage of all ten content areas without over-investing in any single one. Here's a compressed schedule built around that reality.
Language & Numbers Foundation
- Drill grammar, spelling, and basic arithmetic without a calculator
- Time yourself to simulate rapid-reading pressure
Memory & Interpretation
- Practice names-and-faces recall exercises in short bursts
- Work timed reading-interpretation passages daily
Judgment & Reasoning
- Work scenario questions on disciplinary options and situation analysis
- Review objective report-writing samples versus opinion-based language
Full Simulation
- Take one full-length timed practice run covering all ten content areas
- Review missed items by category, not just by raw score
This compressed format is intentionally not a generic weekly template - it's built specifically around the ten CA-CO content areas so that no single area (like memory or arithmetic) gets neglected in the final stretch. For a longer-horizon version of this plan with more repetition built in, the CA-CO Study Guide 2026 extends this into a multi-week format. You can also run full timed simulations on our practice test platform to mirror the real multiple-choice and true/false format before test day.
Frequently Asked Questions
CA-CO refers specifically to the California Correctional Officer Written Exam administered by CDCR's Office of Peace Officer Selection. For a plain-language explainer, see What Is CA-CO? and CA-CO Meaning.
Just one - the Written Test - but that single domain covers ten distinct content areas, from grammar and arithmetic to disciplinary options and situation analysis, all weighted at 100% of your score.
You need 70 or greater on the written test. CDCR reports that 79% of participants pass, and results are emailed within two business days of testing.
You can reapply after a 30-day waiting period. If you pass on a later attempt, your eligibility on the resulting list lasts 24 months from the date you qualify.
CDCR currently marks Correctional Officer applications as temporarily closed, so check the official bulletin for the WY50-9662 administration status before planning your timeline around the May 19, 2026 date.
Keep this cheat sheet handy as your quick-reference anchor, but pair it with deeper reads like CA-CO Training and CA-CO Jobs once you've confirmed eligibility and locked in your written-test prep plan.