- You need 100 correct answers out of 150 questions to pass the CAS exam - no percentage tricks involved.
- That's roughly 67% raw accuracy, but treat every question as equally weighted when you study.
- Results arrive within 2 business days, so you won't wait long to know if you cleared the bar.
- A failed attempt costs USD 79 plus proctor fees, with a mandatory 2-week wait before retesting.
The Passing Score, Exactly
If you're preparing for the American Academy of Health Care Providers in the Addictive Disorders' Certified Addiction Specialist exam, the number to memorize is simple: 100 correct answers out of 150 questions. That's the raw passing score set by the Academy for the CAS credential, and it doesn't shift based on how other candidates perform on your particular test date.
There's no scaled scoring formula to decode, no mysterious "cut score" that moves around, and no need to guess at percentile rankings. You either answer at least 100 of the 150 multiple-choice items correctly, or you don't. This is one of the more transparent aspects of the certification process, and it's worth internalizing early so you can build a study plan around a concrete, unchanging target rather than chasing a moving benchmark.
How the CAS Exam Is Scored
The exam is scored on a straightforward correct/incorrect basis across all 150 multiple-choice questions. There's no partial credit, and there's no indication in the CERT FACTS that any domain is weighted more heavily than another in terms of point value - each question simply counts as one point toward your total of 150 possible points.
Once you finish your session at the approved local testing center or with your approved proctor, the Academy reports results within 2 business days. That's a relatively fast turnaround compared to many certification exams, which means you're not left wondering for weeks whether you hit the 100-point mark.
For a deeper breakdown of how the test is structured and why the scoring works the way it does, the CAS Pass Rate 2026: What the Data Shows article is a useful companion piece - it looks at pass/fail dynamics without relying on invented statistics.
Exam Format and What 100/150 Actually Feels Like
The CAS exam consists of 150 multiple-choice questions delivered in a 3-hour window. Doing the math, that gives you an average of 1.2 minutes per question - enough time to read carefully, but not enough to agonize over every item. Because the exam is administered online through an Academy-arranged local testing center or approved proctor (not an in-person test center network), it's worth confirming your technical setup and proctor logistics well before exam day.
Knowing the passing score changes how you should approach pacing. Since you only need 100 correct answers, not a perfect score, you can afford to flag a handful of genuinely difficult questions and move on rather than burning ten minutes on one item. Getting comfortable with this pacing rhythm is part of what separates candidates who finish confidently from those who panic when the clock hits the two-hour mark with 40 questions still unanswered.
If you're still trying to gauge how tough the exam feels in practice, How Hard Is the CAS Exam? Complete Difficulty Guide 2026 walks through the format and content demands in more detail.
Key Takeaway
Because you need 100 of 150, not 150 of 150, build your pacing strategy around answering every question once, flagging the hardest 15-20 for a second pass, and never leaving blanks - unanswered questions can't earn points toward your total.
Where the Points Come From: The 5 Domains
The 150 questions are drawn from five performance domains defined in the 2026 application and official examination outline. Understanding what each domain covers helps you predict where your 100 points are most likely to come from - and where you're most likely to lose points if you under-prepare.
Domain 1: Counseling
This domain centers on direct clinical counseling skills applied to addictive disorders - the core competencies you'd expect to apply in a session with a client working through substance use or a behavioral addiction.
- Therapeutic rapport-building and intervention techniques specific to addiction treatment
- Application of counseling theory across different addiction types
Domain 2: Treatment Planning
Treatment Planning questions test your ability to design, sequence, and adjust care plans for clients presenting with alcoholism, drug addiction, eating disorders, disordered gambling, or sex addiction.
- Setting measurable treatment goals aligned to client needs
- Adjusting plans as a client's recovery progresses or stalls
Domain 3: Professional and Ethical Responsibilities
This domain covers the ethical and professional obligations expected of a Certified Addiction Specialist, including boundaries, confidentiality, and the standards later reinforced by the Academy's Code of Conduct at renewal.
- Recognizing ethical dilemmas unique to addiction treatment settings
- Understanding scope-of-practice boundaries
Domain 4: Foundations (Transdisciplinary)
Foundations questions draw on the transdisciplinary knowledge base underlying addiction work - pharmacology, psychology, and the broader science of addictive behavior across all five covered conditions.
- Cross-disciplinary understanding of how addiction develops and manifests
- Baseline knowledge that supports every other domain
Domain 5: Client, Family, and Community Education
This domain tests your ability to educate not just the client, but families and communities affected by addictive disorders - a skill set that extends beyond one-on-one counseling.
- Communicating treatment concepts to non-clinical audiences
- Supporting family systems affected by a client's addiction
One detail candidates frequently overlook: even if you're applying with a specialization in mind, the exam still covers alcoholism, drug addiction, eating disorders, disordered gambling, and sex addiction. You can't skip studying the conditions outside your intended focus area - they're all fair game across the 150 questions. For a full breakdown of how these five domains interact and how to allocate study time across them, see CAS Exam Domains 2026: Complete Guide to All 5 Content Areas.
| Exam Element | Detail |
|---|---|
| Total questions | 150 multiple-choice |
| Time allowed | 3 hours |
| Passing raw score | 100 correct answers |
| Passing percentage (approx.) | ~67% |
| Results turnaround | Within 2 business days |
| Domains tested | 5 (Counseling, Treatment Planning, Ethics, Foundations, Education) |
| Conditions covered | Alcoholism, drug addiction, eating disorders, disordered gambling, sex addiction |
If You Don't Hit 100: Retesting Rules
Falling short of 100 correct answers isn't the end of the road, but it does come with real costs and delays worth planning around. The Academy requires a 2-week wait before you can sit for the exam again, and retesting carries a fee of USD 79 plus any applicable proctor fees.
Because retesting isn't free or instant, it's far cheaper - in both time and money - to prepare thoroughly enough to clear 100 on your first attempt. This is one of the reasons a structured resource like the CAS Study Guide 2026: How to Pass on Your First Attempt is worth reviewing before you schedule your exam date, and why practicing under realistic conditions on CAS Exam Prep's practice tests before test day can meaningfully reduce your odds of needing a retake.
Turning the Passing Score Into a Study Target
Knowing you need 100 of 150 correct answers should directly shape how you allocate study time across the five domains rather than studying everything with equal intensity by default. A practical approach is to treat your preparation window in blocks tied to domain complexity - spending more time on the domains that carry the most conceptual ground (like Foundations and Treatment Planning) while reserving focused review sessions for Professional and Ethical Responsibilities, where the material is narrower but precision matters.
Foundations & Counseling
- Build the transdisciplinary knowledge base first - it underpins the other domains
- Review counseling techniques across all five addictive conditions, not just your specialization
Treatment Planning & Client Education
- Practice building treatment plans for varied case scenarios
- Work through family and community education question styles
Ethics & Full-Length Practice
- Lock in Professional and Ethical Responsibilities content
- Take full-length timed practice runs on CAS Exam Prep to gauge your live accuracy against the 100/150 target
Using spaced review in the final two weeks - revisiting missed practice questions a few days after first encountering them - tends to help retention more than last-minute cramming, especially for the denser Foundations material. Beyond methodology, though, the real lever is coverage: since the exam pulls from all five domains and all five addictive conditions regardless of your specialization, gaps in any one area directly reduce your buffer above 100.
Common Miscalculations Candidates Make
A surprising number of candidates misjudge the passing score before they ever sit for the exam. Here are the errors worth avoiding:
- Assuming it's a percentage-based cut score that varies by test date. It isn't - 100 correct answers out of 150 is fixed.
- Studying only their intended specialization. The exam covers alcoholism, drug addiction, eating disorders, disordered gambling, and sex addiction regardless of your specialization, so narrow prep leaves points on the table.
- Underestimating Domain 3. Ethical and professional responsibility questions are often treated as "easy" and under-reviewed, yet they still count fully toward your 150-point total.
- Ignoring pacing. With 3 hours for 150 questions, spending too long on early questions can leave you rushing - and guessing - on the back half of the exam.
- Not budgeting for a possible retest. Treating the USD 79 retest fee as a non-issue can lead to under-preparing the first time around.
If you're still confirming whether you even meet the eligibility requirements before worrying about the passing score, check CAS Requirements 2026: Eligibility, Prerequisites & How to Qualify first. And if you want a single-page reference to keep the core numbers - including this passing score - top of mind during your final review, the CAS Cheat Sheet 2026: One-Page Review of Must-Know Facts is built for exactly that.
Frequently Asked Questions
You need 100 correct answers out of 150 multiple-choice questions to pass the Certified Addiction Specialist exam administered by the American Academy of Health Care Providers in the Addictive Disorders.
It's a raw number: 100 correct answers. Converted to a percentage, that's approximately 67%, but the Academy states the requirement as a raw score, not a scaled percentage.
The Academy reports results within 2 business days of completing your exam session with your approved local testing center or proctor.
You'll need to wait 2 weeks before retesting, and the retest carries a fee of USD 79 plus any additional proctor fees.
No. The exam covers alcoholism, drug addiction, eating disorders, disordered gambling, and sex addiction for every candidate, and the same 100-out-of-150 threshold applies regardless of your intended specialization.