- The CAS exam is 150 multiple-choice questions in 3 hours; you need 100 correct to pass.
- Total core fees run application (USD 195) + exam (USD 349) + background check (USD 50), plus proctor fees.
- Every candidate is tested on alcoholism, drug addiction, eating disorders, disordered gambling, and sex addiction - regardless of chosen specialization.
- Eligibility runs on two tracks: master's/doctoral degree with 3 years/6,000 hours, or no qualifying degree with 5 years/10,000 hours.
CAS at a Glance
This is the fast-reference version of everything you need to know about the American Academy of Health Care Providers in the Addictive Disorders (AAHCPAD) Certified Addiction Specialist (CAS) credential. If you already know the basics and just want the numbers, format, and domain names in one scroll, this page is built for that. For deeper explanations of any single item, jump to the linked companion guides throughout this article, or start from CAS Certification if you're still getting oriented.
Keep this cheat sheet open during your final review week. Print it, bookmark it, or paste the highlight boxes into your notes app - the goal is a one-glance refresher, not another long read.
Fees and Registration Mechanics
Registration for the CAS isn't a single flat fee - it's a sequence of steps, each with its own cost. Understanding the order matters because the Academy arranges your online exam only after your application is approved.
- Application fee: USD 195 (submitted first, reviewed for eligibility)
- Examination fee: USD 349 (paid once you're cleared to test)
- U.S. background check: USD 50
- Proctor fees: additional, varies by local testing center or approved online proctor
- Optional study guide: USD 50 (digital) or USD 129 (printed)
Once approved, the Academy coordinates with an approved local testing center or online proctor to schedule your session - you don't book this independently the way you might with some other exams. For the full cost breakdown with totals and optional add-ons, see CAS Certification Cost 2026: Complete Pricing Breakdown. If you're still deciding whether the investment makes sense for your career, Is the CAS Certification Worth It? Complete ROI Analysis 2026 walks through the decision qualitatively.
Eligibility Snapshot
There are two paths into the CAS application, both built around supervised direct-care hours in addictive-disorder treatment:
| Track | Degree Requirement | Supervised Experience |
|---|---|---|
| Track A | Qualifying mental-health master's or doctoral degree | 3 years / 6,000 hours |
| Track B | Other degree or no degree | 5 years / 10,000 hours |
Both tracks also require three professional recommendations, and one of those must come from a clinical supervisor. Required education spans counseling competencies, selected addiction specializations, and supplemental training components - the Academy expects you to confirm your complete training plan before enrolling, since coursework requirements can vary by background. For a full walkthrough of documentation and common eligibility mistakes, see CAS Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Key Takeaway
If you're on Track B (no qualifying mental-health degree), start logging your 10,000 hours documentation early - recommendation letters and hour verification tend to slow applications down more than the exam itself.
Exam Format and Scoring
The CAS exam itself is straightforward in structure, even though the content is broad:
- Format: 150 multiple-choice questions
- Time limit: 3 hours
- Passing score: 100 correct answers out of 150 (raw score)
- Results: delivered within 2 business days
- Delivery: online, through an Academy-arranged local testing center or approved proctor
That's roughly 67% correct needed to pass - a number worth internalizing since it changes how you triage difficult questions during the exam (skip and return rather than stall). For the exact math and score-interpretation nuances, read CAS Passing Score 2026: Exactly What You Need to Pass. If you want a broader sense of where candidates struggle and why, How Hard Is the CAS Exam? Complete Difficulty Guide 2026 and CAS Pass Rate 2026: What the Data Shows go deeper.
The Five Domains, Fast
The 2026 application and official examination outline organizes CAS content into five performance domains. Here's the condensed version of each - for full breakdowns with sample topics, see CAS Exam Domains 2026: Complete Guide to All 5 Content Areas.
Domain 1: Counseling
Core clinical skills for direct client work across addictive disorders.
- Individual and group counseling techniques applied to addiction contexts
Domain 2: Treatment Planning
Building, adjusting, and documenting individualized care plans.
- Goal-setting and progress tracking across the treatment continuum
Domain 3: Professional and Ethical Responsibilities
Scope of practice, confidentiality, and conduct standards for specialists.
- Ethical decision-making in dual-relationship and disclosure scenarios
Domain 4: Foundations (Transdisciplinary)
The shared theoretical and biological base underlying addiction work.
- Models of addiction, physiology, and cross-disciplinary frameworks
Domain 5: Client, Family, and Community Education
Extending clinical knowledge outward to families and community systems.
- Psychoeducation strategies and community-level prevention concepts
The Five Specialization Areas
This is one of the most commonly underestimated facts about the CAS exam: even if you're applying under a single specialization, the exam covers all five areas.
- Alcoholism
- Drug addiction
- Eating disorders
- Disordered gambling
- Sex addiction
If your clinical background is heavy on substance use but light on process addictions (gambling, eating disorders, sex addiction), that gap is exactly where study time should go. This is not a domain you can skip based on your intended specialization - the questions are baked into the outline regardless.
Retesting and Renewal Numbers
Keep these figures handy for planning purposes:
- Retest fee: USD 79 plus proctor fees
- Retest waiting period: 2 weeks after a failed attempt
- Annual renewal: 20 continuing-education credits
- Renewal also requires: a signed Code of Conduct
- Renewal fee: USD 95 per year
The two-week retest wait is short enough that most candidates don't need to restart their entire eligibility file - just refocus study on the domains where they scored weakest. Continuing education for renewal should be planned across the year rather than crammed near the deadline, since 20 credits is a meaningful annual commitment if left too late.
A One-Week Cram Map
If you're in the final stretch before test day, here's how to allocate a compressed review week across the CAS domains and specialization areas, rather than studying generically.
Foundations and Counseling
- Review Domain 4 theoretical models, then Domain 1 counseling techniques - foundations knowledge supports counseling reasoning
Treatment Planning
- Practice building sample treatment plans; connect Domain 2 to real case scenarios
Ethics and Education Domains
- Cover Domain 3 professional/ethical standards and Domain 5 client/family/community education together
Specialization Gap-Filling
- Target whichever of the five conditions (alcoholism, drug addiction, eating disorders, disordered gambling, sex addiction) you know least
Full Practice Run
- Simulate the 150-question, 3-hour format under timed conditions
This structure works because it sequences foundational and ethical content early, when concentration is freshest, and pushes specialization gap-filling toward the end, when you have clearer visibility into your weak spots. For a full-length structured plan rather than a compressed week, see CAS Study Guide 2026: How to Pass on Your First Attempt.
Who Hires CAS Holders
The CAS credential signals competency across a broad range of addictive-disorder treatment settings - not just substance use programs. Because the exam explicitly covers eating disorders, disordered gambling, and sex addiction alongside alcoholism and drug addiction, holders are positioned for roles in general behavioral health clinics, dedicated addiction treatment centers, and specialized process-addiction programs alike.
If you're evaluating career direction before committing to the application fee, CAS Jobs covers the kinds of roles that typically value this credential, and CAS Salary Guide 2026: Complete Earnings Analysis discusses compensation considerations without relying on invented figures.
Key Takeaway
Because all five specialization areas appear on every exam, employers can reasonably expect a CAS holder to have baseline competency across the full addictive-disorders spectrum - not just their primary clinical niche.
Where to Practice Before Test Day
Reading the outline is not the same as answering 150 timed multiple-choice questions under exam conditions. Before your scheduled session, run through full-length practice sets on CAS Exam Prep to get comfortable with question phrasing and pacing across all five domains. Repeated timed practice on the main practice platform is the closest simulation you'll get to the real 3-hour session without actually sitting for it.
If you haven't locked in your testing window yet, check CAS Exam Dates 2026: Testing Windows, Deadlines & Scheduling before finalizing your study calendar - since the Academy arranges proctoring after application approval, your effective start date depends on how quickly that approval comes through.
Frequently Asked Questions
150 multiple-choice questions with a 3-hour time limit, delivered online through an Academy-arranged local testing center or approved proctor.
You need a raw score of 100 correct answers out of 150 questions to pass.
No. Every CAS exam covers alcoholism, drug addiction, eating disorders, disordered gambling, and sex addiction, even if you're applying under a single specialization.
Core costs are USD 195 (application), USD 349 (exam), and USD 50 (U.S. background check), plus additional proctor fees. An optional study guide costs USD 50 digital or USD 129 printed.
You can retest after a 2-week waiting period for a fee of USD 79 plus proctor fees.
Renewal requires 20 continuing-education credits, a signed Code of Conduct, and a USD 95 annual fee.